She receives 21. 1/5 of 30 is 6, or the number of picture messages Lilly receives. 7/8 of 24, the number of remaining messages, is equal to 21.
Yes, 60° is right.
Do you need me to explain why?
So basically you just want to replace all the x's in the h(x) equation with the f(x) equation.
h(x-7) = 2(x-7) + 3
h(x) = 2x -14 + 3
h(x) = 2x - 11
