2. a local civic group is selling t-shirts to raise funds for relay to life. they plan to sell 2500 t-shirts for $10. they consider raising the t-shirt price in order to earn more profit. for each $1 increase, they will sell 100 fewer t-shirts. let x represent the number of $1 increases.
write a revenue function, r(x), for the t-shirt sale thet could be used to maximize revenue.