Gorden collects rocks. He has 35 sedimentary rocks, 25 igneous rocks, 15 metamorphic rocks, and 10 unknown rocks. Which ratio compares Gorden’s sedimentary rocks to his unknown rocks, expressed in simplest form?
3510
25 : 10
7 : 2
2 : 7
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 bushs per hour
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
The wholesale club sells 6 pounds of pistachio nuts for $21.00. The grocery store is selling 4 pounds for $13.80. Which place offers the better price per pound?
grocery store
wholesale club
Chris bought six pounds of apples for $10.80. How much would 15 pounds of apples cost at the same price per pound?
$10.80
$27.00
$21.60
$162.00
