Math exam (need help/answers step by step?

Consider the function f(x)=-5x+3 what is f(-2)

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two