KROM-FM is currently contemplating a T-shirt advertising promotion. Sales data from T-shirt shops marketing a prototype of the KROM design indicate that

Q=1,200-200P

Where Q is T-shirt sales and P is price.

a. b. c. d.

How many T-shirts could KROM sell at $4.50 each?
What price would KROM have to charge to sell 900 T-shirts?

At what price would T-shirt sales equal zero?

Calculate the point price elasticity of demand at a price $3.00.