Percent Review

Yadira put $500 into the bank.  She earned 4.5% interest. How much did she earn after 4 years?

• $Q\ =\ P\ \cdot\ W$

• $I\ =\ P\ \cdot\ r\ \cdot\ t$

Luis was buying a $300 bike in Fort Collins where the sales tax amount is 5.65%. What is the final price he will pay?

Is this a percent increase or decrease problem?

• Increase

• Decrease

Lino was shopping for the video game, Prey which is $30. The store originally marked it up by 15%. On the day he was shopping, it was marked down by 10%. How much will Lino pay for Prey?

• $31.50

• $35

• $31.05

• $45

After the snow melted, Sloan's Lake water level increased from 3 feet to 5.5 feet. What was the percent increase of the water level?

Which key below is correct?

• Q: 3

  W: 5.5

  P: P

• Q: 5.5

  W: 3

  P: P

Jessica is buying a scarf for $12 that is on sale for 10% off. How much will Jessica pay?

Which equation will Jessica use to find the final price?

• $I\ =\ P\ \cdot\ r\ \cdot\ t$

• $Q\ =\ P\ \cdot\ W$

Heaven was out to a restaurant with her family when the bill came totaling $65.79. During dinner, some of the food came late and Heaven's burger was cold! Her dad complained to the manager who said he would take 15% off of the bill.

Is this a percent increase or decrease problem?

• Decrease

• Increase

Alejandra went to lunch with her friend for her birthday and offered to pay. The total came to $25.45. She wanted to leave a 20% tip. How much did Alejandra leave as a tip?

• $30.54

• $5.45

• $20.36

• $5.09