PLS HURRY What is the approximate surface area of this right prism with triangular bases? h 78 ft oft 12 ft oft A) 2 200 ft. B) 2 240 ft. C) 2 394.2 ft. D) 2 460.8 ft.​

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?