You need to buy 18 rolls of film. one shop sells it for$9.95 plus 5% sales tax. another shop $9.75 per roll and charge $15.00 to ship no sales tax. choose the better of the two prices how much will you pay for 18 rolls of film?

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?