Anna is making a fertilizer mix for her flower garden. she uses 2 cups of fertilizer to 12 quarts of water. how much fertilizer does anna need to make 15 gallons of the mixture?

a.
212 cups

b.
5 cups

c.
2212 cups

d.
10 cups

D ) 10 cups

Step-by-step explanation:

Since 4 quart = 1 gallon, multiply 4 by 15 to get 60 because there are 15 gallons.

Then, you divide 60 by 12 to get 5 because every 2 cups of fertilizer, 12 quarts of water is used.

Finally, multiply 5 by 2 because Anna uses 2 cups of fertilizer for every 12 quarts of water.

That's how you get the answer of 10 cups.

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.