To clean the fish tank 3/4 cups of disinfectant is needed for every two gallons of water how many cups of disinfectant are needed for 20 gallons of water

7 1/2 cups

Step-by-step explanation:

20 gallons is ten times 2 gallons.

Ten times the amount of water will require ten times the disinfectant (we assume).

... 10 × 3/4 cup = 30/4 cups = 7 1/2 cups

its 4 because 2 times 2 is 4, if you double the number two you get four

according to egenuity the answer is

step-by-step explanation:

d. 344.22