Afish tank weighs 20.5 pounds when empty. the aquarium is 28 inches long, 12 inches wide, and is filled with water to a depth of 15 inches. water weighs 0.036 pounds per inch. how much does the fish tank weigh when it's full of water?

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!