EMERGENCY! Please give me the correct answer!

12

Step-by-step explanation:

2² = 4

2³ = 8

4+8=12

2^2= 4 and 2^3=8. 4+8=12

Step-by-step explanation:

To square a number, multiply it by itself, e.g. 2×2=2^2=4. To cube a number, multiply it by itself twice, e.g. 2×2×2=2^3=8. It is also easy to work out square roots on your calculator; simply enter the number and then the square root key.

(^="to the power of")

12 is your answer

i assume that by 5 you mean 5 gallons.

(20)(0.25) = 15

removing 15 gallons reduces the tank from 20 to 5.

include a picture of the drawing in order for me to

step-by-step explanation: