Some grade 8 students are planning a hot -dog day to fund raise for their trip. Hot dogs are sold in packages of 12 and buns are sold in packages of 8. Last year, they sold around 250 hotdogs. If they want to sell roughly the same amount again this year, how many packages of buns and hot dogs should they buy if they want to have no hot dogs and buns left over?

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?