6 and 8 plz

Name Math 150 Review Test 2 Chapter 2 7. The marketing research department for a company that manufactures and sells memory chips for mucrocomputers established the following revenue and cost functions (in millions of S, for producing and selling's million microchips C(x) = 16x + 125 R (x ) = -3x2 + 75x and a Graph R(x) and C'x) on the same graph using the window: x = [0 to 30 by 1] and y = [0 to 500 by 50]. Sketch the graph below, labeling the AxeS. How many microchips must be manufactured and sold in order to reach the maximum revenue? What is that revenue? Show work or explain. c) Find the break even points where R(x) = C(x). You may use the "intersect" function on your calculator. and () On what interval will a profit occur? This is when revenue exceeds costs. R(x) > C(x). Darken this region on the graph above and record the solution below. 8. Solve the inequality. a) x - 3x - 10 > 0 b) 6x2