Answer:

Step-by-step explanation:
Given

Required
Evaluate when n = 12
Substitute 12 for n in 

Simplify the fraction


-420 is your answer
your welcome make me the brainliest!!!
Answer:
the answer is -33 srry couldn't explain :(
Answer:
3
Step-by-step explanation:
(32-20)÷4
solve perentisis first
(12)÷4
now divide
=3
You multiply by 10 or more