Sales Tax & Tips
Discounts
Commission
Simple Interest
percent of error
100

A $99 printer has a 5 % tax.  An equation to find the sales tax.  

What is Sales tax (y)=99 (0.05)?

100

$64 jacket; 20% discount. Find the sale price.

What is $51.20?

100
Judi makes 7% commission on cell phone case sells. How much will she earn if she sells $855 worth of cases?
What is $59.85?
100

You borrow $640 at 3% for 1 years. What do you owe in interest?

What is $19.20?

100

Which fractions are not repeating?

a) 2/6

b) 3.5/7

c) 3/8

c) 5/9

what are b) 3.5/7 since it is 1/2 or 0.5

and 

c) 3/8 since it is 0.375?

200

A trampoline costs $220 and the sale tax is 6.25%. Two equations to find the total cost are

What is y=220(1.00)  + 220 (0.0625)   and

y=220(1.0625)?

200
$7.50 admission; 20% off. Find the sale price.
What is $6.00?
200
The commission on the sale of a $1,250 video camera is $75. What is the commission rate?
What is 6%?
200
$4,500 invested at 9% for 3.5 years. What is the amount you earn in interest?
What is $1,417.50?
200

Which equation does not belong?
a) y=kx

b) y= x +p(x)

c)y=px

d) y=kx +p

What is d) y=kx + p?

300

Mr. T paid $709.59 for exercise equipment, which included a 9 % sales tax. The regular price of the equipment was..

What is $651?

300
A shirt cost $45.50. It is on sale 30% off. If buy it today, you get an additional 20% off. What is the sale price?
What is $25.48?
300
Kayla earns a weekly salary of $290 plus a 5.5% commission on sales at a furniture store. How much would she make in a week if she sold $5,700 worth of merchandise?
What is $603.50?
300
Abbie invests $590. Her account pays 7.2% simple interest. If she does not add or take out any money how much interest will her account earn in 4 years?
What is $169.92?
300

A Jumbo pack of candy says it contains 105 pcs.  The actual amount in the pack was 103 pcs.  What is the percent of error? 

what is about 1.9%

400

A customer wants to tip 15% on a restaurant bill that is $35 plus a 10% tax. What will be the total bill with tax and tip?

What is $43.75?

400
Carmen paid $10.50 for a T-shirt at the mall. It was on sale for 30% off. What was the original price?
What is $15.00?
400
Stella earns a weekly salary of $275 plus a 14% commission on jewelry sales. If she sells $1599.99 worth of jewelry, what was Stella's paycheck that week?
What is $499.00?
400
Find the amount of interest paid for borrowing $725 with a simple interest rate of 6.25% for 36 months.
What is $135.94?
400

Another bag of candy had exactly 9 mini chocolate bars.  The bag said it contained 8.  What is the percent error.

what is about 11.1%?

500

A haircut costs $21. If you leave a $4 tip, then what is the total percent paid by the $25

What 1.19%?

500

You really want a virtual reality headset that is on sale for 40% off. If the discount amount is $84,

a) what is an equation to help find the original headset?

b) what is the original price of the headset?

y=p x

84=0.4(x)

84/0.4=x

x=What is $210?

500
Mariah makes $15 an hour plus a 12% commission selling graphing calculators. How much does she earn on an 8-hour shift in which she sold $2,360 worth of calculators?
What is $403.20?
500
You invest $6,500 for college at 4.5% simple interest for 12 years. Find the interest you will earn on this investment.
What is $3,510?
500

Gage expected about 250 people at the Fall Fest, but 325 came. What is the percent of error?

what is 23%

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