posted by sahar .
teemu's t-shirts designs and manufactures t-shirts for a $15 flat design rate and $7.50 for each t-shirt.he wants to sell his t-shirts to the senior class for their graduation party. he is going to charge them $10 for each t-shirt.
write a function,c, representing the cost of,t,t-shirts.
write a function,I, representing the income that teemu
Cost(t) = 7.5t + 15
Income(t) = 10t - 7.5t - 15
= 2.5t - 15