Answer:
11.025 gallons of water
Explanation:
First, let's find out how much water the fish tank can hold when it's completely full:
12 3/5 gallons = 12 + 3/5 gallons
= 12 + 0.6 gallons
= 12.6 gallons
Now, we want to know how much water is in the fish tank when it's filled 7/8 of the way:
Amount of water in the tank = (7/8) * 12.6 gallons
= 0.875 * 12.6 gallons
= 11.025 gallons
So, there are 11.025 gallons of water in the fish tank when it's filled 7/8 of the way.