Revenue The total weekly revenue earned at Royal Ruby Retailers is given b...

Revenue The total weekly revenue earned at Royal Ruby Retailers is given by

where p is the price (in dollars) RRR charges per ruby. Use this function to determine:

a. The weekly revenue, to the nearest dollar, when the price is set at $20/ruby.

b. The weekly revenue, to the nearest dollar, when the price is set at $200/ruby. (Interpret your result.)

c. The price RRR should charge in order to obtain a weekly revenue of $1,200.