Lamar has a summer job. he gets paid $7.25 an hour and a $150 bonus at the end of summer. the total lamar earns can be modeled by the equation f(h) = 7.25h + 150, where h is the number of hours he works. in what form is the equation?

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?