Give the slope of the graph and the unit rate.

Multiplying an even number of negative numbers gives an answer that is choose from:

Hi my sisters and brothers can tell me the answer because i don’t understand the question

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank