Surface are of a cylinder when r=3 & h=4

Which of the following are accepted without proof in a logical system? check all that apply.

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

What is the solution to the system of equation graphed belowa.(0,-4)b.(2,5),1),-3)