Question 1 of 25 Which of the following pairs of functions are inverses of each other?
O A. f(x) = 2x° +12 and g(x)= Ž - 12
B. f(x)=7 x2 +10 and g(x) =
X-10
7
C. f(x) = {x+2-7 and g(x) = (x+2)° +7
3x+8
D. f(x)=
and g(x) = (7x-8)
7

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?