Enter the correct answer in the box. The number of cups of sports drinks that can be filled from cooler varies inversely with capacity of each cup. If each cup holds six, 128 cups can be filled. Write an equation that can be used to find the number of cups, C, of size S ounces that can be filled from the cooler.

The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?