Heidi and Cassandra are selling sweaters online. It will cost them 2,000 in start up costs plus approximately $4.50 per sweater to open their business.

A) find the formula for their cost, c(x) for x number of sweaters.

B) how much will it cost for them to get 1500 sweaters?

C) if they sell each sweater for $15.95, how much profit will they make if they sell the 1500 sweaters?