Ahmed is a BBA student who was passionate to start his own business during education. Through this lockdown he noticed that the people are doing most of their shopping online. After doing the research, he found out that demand for mask N95 are growing at a rapid pace continuously and in the near future the demand will not be declining. Taking advantage of this opportunity, he developed his website and social media pages and he approached a marketing research firm to provide the demand function for this particular business. A predicted demand function given by firm is

q= f(p) =1800-7.5 p

a. Determine the quadratic total revenue function. R=h(p)
b. What is the concavity of the function?
c. What is q-intercept?
d. What does total revenue of Ahmed business equal at a price of $50?
e. How many mask N95 will be demanded at this price?
f. At what price will total revenue be maximized?