Percent Problems and Simple Interest

A class has 27 girls which is 45% of the class.  How many students are in the class?

• 12 students

• 55 students

• 60 students

• 63 students

Pennywise puts $300 in a bank account earning 4% interest. How much will he earn in interest in 6 months?

• 72

• 6

• 372

• 306

Find the percent of change.

From 20 miles to 11 miles.

• 45% decrease

• 45% increase

• 82% decrease

• 82% increase

The Polar Express movie is $12 and it will be on sale for $8.What is the percent of change if the cost decreased $4?

• 15%

• 33%

• 10%

• 32%

Starting money = $350.
Interest rate = 2.5%
TIme = 3 years.
How much interest?

• $7.50

• $26.25

• $87.5

• $262.50

Emilio borrows $1200 from a bank with 8% simple interest per year.  How much will he have to pay back total in 2 years?

• $150

• $192

• $1350

• $1392

If you receive 25% off an item costing $22.00, how much money do you save?

• $ 5.50

• $ 4.25

• $6.00

• $7.35

Kimberly's family has a dinner bill of $26 and wants to leave a 15% tip for their server. How much tip are they leaving?

• 29.90

• 39.00

• 4.00

• 3.90

Compute the sales commission:
Amount $911.00
Rate 4%

• $35.33

• $36.44

• $30.22

• $29.53

Ralph buys a computer for $675. The sales tax rate is 6%. How much did Ralph pay for the computer?

• 40.50

• 715.50

• 6.00

• 634.50