An aquarium holds 6 1/4 gallons of water. the water level has dropped to 4/5 of this amount. how much water should be added to fill this aquarium?

Which expression is equivalent to 2^4y^3

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

Subtract and simplify. (-y^2 – 4y - 8) – (-4y^2 – 6y + 3) show how you got the answer if your answer is right i will mark you