Find (g o f)(-3). * f(x) = 5x – 4
g(x) = x^2 – 1

O A. 36
O B.-9
O c. 1
O D.-54

(g o f)(-3)  = 360  Maybe answer A is a typo

Step-by-step explanation:

(g o f)(-3)  = g(f(-3))

f(-3) = 5(-3) - 4

      = -15 - 4

      = -19

Now find g(-19) = - 1

                         = 361 - 1

                         = 360

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )