Discount/Tax
Interest
Increase/decrease or original value
100

You buy a shirt that costs $45.50.  If there is an 8% sales tax, what is the total cost of the shirt?

$49.19

100

You open a savings account with $400 that earns 9.5% per year.  How much money will you earn in 4 years?

$152

100

You bought a shirt for $30 using a 20% off coupon.  What was the original price of the shirt?

$37.50

200

You buy a bag that costs $37 with a 20% off coupon.  What is the sale price?

$29.60

200

You open a saving account with $750 that earns 12.5% per year.  What is the new account balance after 5 years?

$1,218.75

200

What is the percent increase between 75 and 120?

60% increase

300

You bought a shirt that costs $15 and 2 pairs of pants that each cost $12.50.  What was the total cost after a 7.5% sales tax?

$43

300

You take out a loan for $10,000 that earns 14% interest per year.  If you pay off the loan in 15 months, how much interest did you pay?

$1,750

300

You bought shoes that cost $135 including an 8% sales tax.  What was the original price of the shoes?

$125

400

You bought 3 bags of chips that each cost 3.60.  You used a 10% off coupon and then had to pay an 8% sales tax.  How much did you pay for the chips? (round to the nearest cent)

$10.50

400

You take out a loan for $5,000 that earns 19.5% per year.  If you pay off the loan in 39 months, what was the total amount you paid?

$8,168.75

400

What is the percent decrease between 500 and 307?

38.6% decrease

500

You bought 2 shirts that each cost $20 and a pair of pants that cost $30.  You used a 30% off coupon that only applied to the shirts.  If there was a 6% tax, what was the final cost?

$61.48

500

You started a savings account with $300 that earns 32.5% interest per year.  What is the new balance after 57 months? (round to the nearest cent)

$763.13

500

What has a larger percent increase?

Situation 1: 12 to 14.4

or 

Situation 2: 15 to 17.4?

Situation 1- 20% increase

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