Percent Proportions & Simple interest

1) In an 8th grade class, 18 out of 30 students are female. What percent of the students in the class are female?

• 60%

• 55%

• 40%

• 75%

2.) Stacy has saved $36 towards the price of a new MP3 player. This is 28% of the total price. What is the price of the MP3 player (to the nearest cent)?

• $100.50

• $128.57

• $150.00

• $130.91

Tags

CCSS.6.RP.A.3C

3.) Ivana buys a $68 pair of shoes. She receives a 15% employee discount. If the sales tax is 6 ¼ %, how much, to the nearest cent, does she pay for shoes?

• $60.40

• $61.41

• $70

• $65

Tags

CCSS.6.RP.A.3C

4.) Find the percent of change from 25 lbs to 12 lbs.

• 52% Increase

• 52% Decrease

• 60% Increase

• 17% Decrease

Tags

CCSS.6.RP.A.3C

5.) In the formula I=Prt, you earn $77.24 in interest, you invested $668, and the duration of the loan was 1 ¼ years. What is the rate?

• 11%

• 7%

• 3%

• 9%

Tags

CCSS.7.RP.A.3