Select the correct answer. Simplify the following expression.
(r + 2) + (1 - 1)
+
5
A.
631 +
3
B.
16+ +
C.
23
63+ +
23
D.
63 +

HELP PLEASE!!
48 POINTS FOR ANSWERING!!!

Which polynomial function has x intercepts -1, 0, and 2 and passes through the point (1, -6)

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.

Is a positive integer raised to a negative power always positive