Answer 
Step-by-step explanation:
Use order of operations and evaluate the exponent first




Causing the surface water to evaporate
Answer:20.25
Step-by-step explanation:
If you do 81 divided by 4
I think Im not sure
Felipe subtract 3x from both side to get rid of x on one side. Ik this isn’t part of the answer but the correct way to do this would be to subtract 2x from each side after adding 8 to each side of the equation
Answer:
2 units
Step-by-step explanation:
none