What is the area of the shaded region?

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Which shows the graph of the solution set of 3y – 2x > –18?

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