9) Suppose the demand for a certain item is given by D(p) = -3p2 + 7p + 3, where p represents the price of the item. Find D'(7).

What is the range of the data below? .8090100

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab