To print T-shirts includes $50 for the design and $4 per shirt. Express the cost of printing the T-shirts as a function of the number of T-shirts printed and then find the cost for printing 500 T-shirts.

MY WORK:

My linear function model is:

T = $4P + $50...Is this correct?

To print 500 T-shirts will cost:

500 = 4P + 500

500 - 50 = 4P

450 = 4P

450/4 = P

$112.50 = P

Let P = price

Let T = T-shirts

Does this make sense? Is this right?