CALCULUS 10 QUESTIONS ! Need Help asap!

2. Marginal Revenue R= -4x^3 + 2x^2+100x

3.Marginal Profit P= -0.0002x^3 + 6x^2 - x - 2000 4.Marginal Profit The profit p (in dollars) from selling x units of a product is given by P = -0.05x^2 + 20x -1000.

a)Find the marginal profit when x =100 units

b)Find the additional profit when the sales increase from 100 to 101 units

c) Compare the results of parts (a) and (b)

5.Find Derivates g(x) = x sqrt x^2 +1

6.Find Derivates f(x) + x(1-4x^2)^2

7.Find Derivates h(x) = [x^2(2x +3)]^3

8.f(x) = x^2(x-7)^6/5

9. h(t)= sqrt 3t + 1 / (1-3t)^2