Rates and Percents

Sarah earns $20 a day working after school. She spent 30% of her daily earnings on Monday. How much money did she spend on Monday?

• $1.40

• $6

• $0.60

• $14

200 children attended the school play. Of the total attendance, 40% were boys. How many girls attended the school play?

• 800

• 180

• 80

• 120

A Chicago Cubs baseball cap costs $30.  Michael has a coupon that will save him 30% of the  price. How much money will Michael pay for the cap?

• $9.00

• $22.00

• $21.36

• $21.00

The Williams family bought four concert tickets for $252.  What was the price per ticket?

• $60.00

• $63.00

• $6.30

• $62.00

the measure of percent change in which something loses value

• percent increase

• unit rate

• simple interest

• percent decrease

the measure of percent change in which something increases in value

• unit rate

• percent increase

• percent decrease

• simple interest

quantity out of 100

• percent

• unit rate

• percent decrease

• sales tax

a comparison of two measurements with a denominator of 1

• rate

• unit rate

• percent decrease

• sales tax

a comparison between two quantities with different units of measure

• sales tax

• percent increase

• rate

• unit rate

interest calculated only on the principal, I=prt

• simple interest

• percent increase

• percent decrease

• sales tax