Which of the following equations will generate the graph right? A. (x-4)^2=y
B. (x + 4)2 = y
C. (x-2)(x + 2) = y
D. (x - 2)^2= (x + 2)^2 + y
Explain and justify your answer

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?