Calculating Percentages and Interest

Mrs. Appiah provides an answer key for a module four practice test covering lessons one through eleven. The video tutorial includes solving various percentage problems, calculating discounts, sales tax, commission, and interest. It also covers percent change, percent error, and double discounts, providing step-by-step solutions and explanations for each problem.

What is 20% of 60?

• 10

• 12

• 15

• 18

If 20 is 30% of a number, what is the number?

• 60

• 75

• 66.67

• 70

What percentage of 8 is 2?

• 30%

• 25%

• 35%

• 20%

If you make 14 out of 20 shots, what is your shooting percentage?

• 70%

• 65%

• 75%

• 60%

A TV priced at $200 is on sale for 15% off. What is the sale price?

• $180

• $170

• $190

• $160

Jordan shoes are regularly $65 and are on sale with a 40% discount. What is the sale price?

• $39

• $35

• $49

• $45

A soccer goal costs $150 with a 7% sales tax. What is the total price?

• $165.50

• $160.50

• $170.50

• $155.50

An item costs $120 with a 10% discount and 5% sales tax. What is the final price?

• $118.40

• $110.40

• $113.40

• $115.40

Walmart bought a pillow for $5 and wants a 45% markup. What is the selling price?

• $7.75

• $7.25

• $6.75

• $6.25

What is the commission on a $15,000 sale with a 5% commission rate?

• $700

• $600

• $750

• $500