Clarence is trimming bushes. He can trim 12 of a bush in 15 hour. At what unit rate can Clarence trim bushes?
10 bushes per hour
110 bush per hour
2 bushes per hour
212 bushes per hour
The ratio of a rectangle’s length to its width is 2 : 1. If the length is 14 cm, what is its width?
14 cm
10 cm
7 cm
28 cm
A bag has 24 marbles. 37.5% are red marbles, 41.7% are green marbles, 12.5% are yellow marbles, and 8.3% are pink marbles. What is the ratio of the total number of marbles to yellow marbles? Express your answer in simplest terms.
2421
8 : 1
8 : 7
1 : 8
An air tank of 500 mL is 80% oxygen and 20% nitrogen. What is the amount of oxygen in milliliters in a 200 mL air tank that contains the same ratio?
160 mL
40 mL
400 mL
100 mL
Gum is on sale for $1.50 for 2 packs. You have $12. Write a proportion to show the number of packs of gum you can buy.
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