For a school fundraiser, Elena will make T-shirts. She will order T-shirts and print graphics on them. Elena must spend $349 on a printing machine and $4.80 per shirt for the blank shirts, ink, and other supplies.

Write an expression for the cost of making n T-shirts.

What is the maximum number of T-shirts Elena can make with a budget of $1,000?

The cost of 20 shirts is $
The cost of 40 shirts is $
The cost of 60 shirts is $
find the cost for 20 40 and 60