Simple Interest
What is the simple interest on $4,500 at 9% for 3 years?
$1,215
A store pays $50 for a video game. The markup is 35%. How much is the markup?
$17.50
Jennifer bought a shirt that cost $25. It had a tax rate of 7%. How much tax did she pay?
$1.75
A DVD recorder was originally $250. It was on sale for $200. What was the percent change?
20 % decrease
Carol Lee bought a purse with an original price of $55. There was a 20% discount and a 7% sales tax. How much did she pay for the purse?
$47.08
Find the simple interest on $600 at 2% rate for 6 months.
$6
A shirt originally cost $35. It was on sale for 15% off the original price. How much was the mark down?
$5.25
What is the total cost of a $12.60 item with an 8% sales tax?
$13.61
The price of gasoline was $3.00. The price is now $3.50 per gallon. What is the percent change? (round to the nearest whole number)
17% increase
A meal costs $7.50 and has a 3.5% sales tax. How much is the meal with the tax?
$7.76
Maria deposited $1,000 into an account. The account earned 6.5% annually. If Maria kept her money in the account for 2 years, how much interest did she earn?
$130
The Pink Closet dress shop is closing. Their dresses are marked down by 35%. If a dress originally cost $45, what is the cost after the markdown?
$29.25
Ben and his friends went to lunch. Their bill was $46.80. They left a 20% tip. How much tip did they leave?
$9.36
Marcus thought he could get 100 free throws in 30 minutes. He actually got 80. What was his percent error?
25%
Kristen borrowed $6,300 from the bank. The interest rate is 6% per year. How much simple interest will she pay if she is able to pay the loan off in 7 months?
$220.50
What is the simple interest on $1,200 at 4.9% rate for 8 months?
$39.20
A cell phone originally costs $499. It is marked down by 50%. How much is the new price?
$249.50
Jeffrey and his wife went to dinner for their anniversary. The dinner bill was $53.75. Jeffrey left an 18% tip. How much did Jeffrey pay for dinner including the tip?
$63.43
Mr. Parker estimated there would be 500 people at the concert. There were actually 625. What was his percent error?
20%
A video game was marked up by 60%. If the markup price is $40, what was the original price?
$25
Leon obtained a $3,000 car loan. He plans on paying off the loan in 2 years. At the end of the 2 years, he will have paid $450 in interest. What was his simple interest rate?
7.5%
450 = 3000(r)2
450 = 6000r
.075 = r
.075 x 100 = 7.5%
A video game is on sale for 30% off. If the sale price is $15.40, what was the original price?
$22
What is the total cost of a $42 spa treatment with a 15% tip and a 5% sales tax?
$50.40
A music video had 125,350 hits in one day. The band had a television interview, and the next day, they had 535,450 hits for that day. Which of the following could be the approximate percent change?
A. 31% increase
B. 31% decrease
C. 327% increase
D. 327% decrease
C. 327% increase
Which formula can be used to calculate the price with tax if the tax rate is 7%?
A. t = p x .07
B. t = p x 1.07
C. t = p x 0.8
D. t = p – 1.07
B. t = p x 1.07