Question

PLEASE HELP!!! Solve the problem by writing an inequality. A club decides to sell T-shirts for $12 as a fund-raiser. It costs $20 plus $8 per T-shirt to make the T-shirts. Write and solve an equation to find how many T-shirts the club needs to make and sell in order to profit at least $100. Show your work.

Answer 1

Each shirt is bought for eight dollars and sold for twelve, so there is four dollars profit per shirt. The twenty dollar constant, however, needs to be covered by the profit.
The inequality is
100>=4x-20
120>=4x
30>=x
The club needs to sell at least 30 shirts to make a profit of at least $100