given the value evaluate this function
f(x) = -8x+20; 5-2 [f(-1)]

Answer:
-51
Step-by-step explanation:
f(x) = -8x+20
5 - 2 * f(-1)
First find f(-1)
f(-1) = -8*-1+20 = 8+20 = 28
Then
5 - 2 * 28
5 - 56
-51