Percent & Populations

A lawnmower that regularly sells for $150 is on sale for $120. The price was decreased by ___ percent.

Beach Bikes is advertising a sale with 15% off all bikes in the store. Sales tax is 8%.

A beach cruiser bike is regularly priced at $229.00. What is the final price for the beach cruiser bike, including the sales tax, if it is purchased while on sale?

Mathematical Equivalence

ON

Nine years ago, Tarah opened a savings account with her bank. She started with a balance of $359 and has not made any withdrawals or deposits since then. If her interest rate is 8% each year, how much interest has accrued using simple interest?

Mathematical Equivalence

ON

Mason could bench press 175 pounds six months ago. Now he can bench press 280 pounds. What is the percent of increase in weight?

• 37.5%

• 40%

• 60%

• 62.5%

• $3.68

• 16%

• 18%

• $26.68

The store paid $4.50 for a book and sold it for $7.65. What is the profit as a percent of the cost to the store?

• 3.15%

• 58.8%

• 70%

• 315%

Brian bought a ladder that was on sale for 30 percent off of the original price. If the original price of the ladder was $29, what was the sales price of the ladder?

• $8.70

• $16.40

• $20.30

• $26.10

Daniel bought a computer game for $25 and later sold it to Thomas for a 40% profit. How much did Daniel sell the computer game for?

• $10

• $15

• $35

• $350

A store is having a "25% off everything" sale. What would be the sale price of a jacket that originally cost $55.00?

• $13.75

• $40.25

• $41.25

• $68.75

Amy needs to estimate how many students at her school like online testing. She needs to create a random sample of students. How should Amy collect her sample? Select TWO that apply.

• Amy should ask the 50 students in the computer lab.

• Amy should ask the 35 students in her honors math class.

• Amy should ask 3 people at every table in the cafeteria.

• Amy should ask her 10 closest friends.

• Amy should ask every 10th person leaving the school at the end of the day.