The market research department of the Better Baby Buggy Co. predicts that the demand equation for its buggies is given by q= -0.5p+140, where is the number of buggies it can sell in a month if the...

The market research department of theBetter Baby Buggy Co.
predicts that the demand equation for its buggies is given by q= -0.5p+140, where is the number of buggies it can sell in a month if the price is $p per buggy. At what price should it sell the buggies to get the largest revenue? What is the largest monthly revenue?