Answer:
The simplified form of
is 
Step-by-step explanation:
Given : 
We have to write the simplified form of 
Consider the given expression 
We know 
and 
Thus,

Simplify, we have,

Thus, The simplified form of
is 
Answer:
Step-by-step explanation:
labor cost = 20 * h = 20h
Total cost = 100 + 20h
N(1/3)-8=-13 is the correct answer.
You do 9+3 which equals 12 then you multiply that by 4