Add the following lengths: 4' 9" + 7" =
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Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Plzzz i beg u so much asap ! what is the slope of this line? enter your answer in the box.

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π