42 because 42-12=30 hope dis helped my guy
Answer:
x =180-39-102 =39
Step-by-step explanation:
Answer:



Step-by-step explanation:
Given


Solving (1): (f-g)(x)

Substitute values for f(x) and g(x)

Open Bracket


Reorder

Solving (2): (f-g)(10)
In (1)

So:



Solving (3): (f/g)(x)

Substitute values for f(x) and g(x)

Answer:
60
Step-by-step explanation: