Cost, revenue, and profit. Hillary sells roses at a busy Los Angeles intersection. The fun...

Cost, revenue, and profit. Hillary sells roses at a busy Los Angeles intersection. The functions

and

give her weekly cost, revenue, and profit in terms of x, where x is the number of roses that she sells in one week.

a) Find C, R, and P if x = 850. Interpret your results.

b) Find x if P = 995 and interpret your result.

c) Find R − C if x = 1100 and interpret your result.