Find the slope that passes through -3,1 and 7,5

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Ineed to know how to write question one in mathematical terms

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.