Sales Tax & Tip
Alex took his friends out to dinner. If the dinner was $45.80 and he gave a 15% tip, how much money did he spend on dinner?
$52.67
Sarah bought a jacket that was marked down to 60% of its original price. She used a coupon to save an additional 30% off the sale price. If the jacket's original price was $80, what was the final price Sarah paid?
$33.60
Jenny's Bakery can bake 150 cakes in a day. After upgrading their ovens, the bakery can bake 270 cakes in a day. By what percent did the production increase?
80%
To help him save money for college, David's parents deposited $8000 into a savings account four years ago. David has not made any withdrawals or deposits since then. The interest rate on the savings account is 4% each year. Using simple interest, how much interest has accrued in David's savings account? What is the total amount in David's savings account?
Interest: $1280
Balance: $9280
Compute.
2(-4 - 1 + 8) + (-15)
-9
Carlos bought a bicycle. The 7% sales tax on the bicycle was $14. What was the total cost including the sales tax?
$214
Michael went shopping and bought a jacket that was on sale for 30% off the original price of $50.00. A 5% tax was also added on to the sale price. What is the total amount Michael spent on the jacket? Round to the nearest cent if necessary.
$36.75
The cost of a loaf of bread per unit is $5 before tax. If the final price is $5.35, what is the percent of the tax?
7%
Karen deposits $300 into an account that pays simple interest at a rate of 6% per year. How much interest will she be paid in the first 5 years?
$90
Write 14/3 as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.
4.6 with bar notation over the 6
An item has a listed price of $75. If the sales tax rate is 3%, how much is the sales tax (in dollars)?
$2.25
An item on sale costs 10% of the original price. The original price was $82. Find the sale price.
$8.20
25%
To be able to take her dream vacation, Jenny decides to save for 6 years. She opens a savings account with $400. The account pays simple interest at an annual rate of 5%. She doesn't make any more deposits. How much total interest will Jenny earn and what will the total amount in her account be (including interest)?
Interest: $120
Balance: $520
Identify the constant of proportionality in the following equation: y = 5x
5
The wholesale price for a bookcase is $118. A certain furniture store marks up the wholesale price by 32%. Find the price of the bookcase in the furniture store.
$155.76
An item is regularly priced at $85. Rita bought it at a discount of 40% off the regular price. How much did Rita pay?
$51
Last year, Kevin had 80 video games in his collection. Now, he has 100 video games in his collection. Determine if this a percent increase or percent decrease and then determine the percent increase or percent decrease amount.
25%
To go on a summer trip, Reuben borrows $700. He makes no payments until the end of 3 years, when he pays off the entire loan. The lender charges simple interest at an annual rate of 3%. How much total interest will Reuben have to pay? What will the total repayment amount be (including interest)?
Interest: $63
Balance: $763
A proportional relationship on a graph has two characteristics. What are they?
Straight line
Passes through the origin (0, 0)
A laptop has a listed price of $847.99 before tax. If the sales tax rate is 9.75%, find the total cost of the laptop with sales tax included. Round your answer to the nearest cent, as necessary.
$930.67
Felipe has two coupons for a chair.
Coupon A: $9 rebate on a $38 chair
Coupon B: 30% off of a $38 chair
Choose the coupon that gives the lower price. What is the difference in the two coupon prices?
Coupon B is lower. The difference is $2.40.
Mrs. Johnson has a family portrait in the shape of a rectangle which she is going to enlarge. The base and height of the portrait will each be increased by 50%. Determine the percent increase in the area of the portrait that Mrs. Johnson would expect to see.
125%
Ann wants to buy a new house but needs money for the down payment. Her parents agree to lend her money at an annual rate of 4%, charged as simple interest. They lend her $2000 for 18 months. She makes no payments except the one at the end of that time. How much total interest will Ann have to pay? What will the total repayment amount be (including interest)?
Interest: $120
Balance: $2120
The temperature in Fairbanks was -35 degrees Fahrenheit. The temperature in Santa Fe was 68 degrees Fahrenheit. How much lower is the temperature in Fairbanks?
103 degrees