Plz 50 points give awnsersneed surface area and volume for both

The circumference of a circle is 5 pi cm. what is the area of the circle?

The price for gasoline is represented by the equation y=3.69x, where y represents the total price for x gallons of gasoline. on a graph, the number of gallons is represented on the horizontal axis, and the total price is represented on the vertical axis. determine whether each statement describes the graph of the equation. select true or false for each statement

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5