After a storm, the serafina family needs to have their roof replaced. their house is in the shape of a pentagonal prism with the dimensions shown in the diagram. a roofing company gave mr. serafina an estimate based on a cost of $2.75 per square foot to replace the roof. how much will it cost the serafina family to have their roof replaced? $1,500 $2,062.50 $3,850 $4,500

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?