Answer:
9
Step-by-step explanation:
substitute the x which is x= 2, so
f(2)= (2+1)^2
=(3)^2
=9
4
3x + 1
9x -6 -6x +7
9x-6x -6 +7
3x +1
120 and 144
120÷24=5
144÷24=6
20
170/8.5
