Answer:
The coefficient is 
Step-by-step explanation:
The given sum is

We can choose to add only the coeffients of
or simplify the whole sum.

We collect the LCM for the
terms;

This will give us;

Which is the same as

The coefficient is 
Answer:
55
Step-by-step explanation:
3x-12=2x
+12
3x=2x +12
-2x
x=12
4(12)+ 9
48+9
=55
Answer:
F, D, E, and B are all correct (10, 8, 7, and 4)
Step-by-step explanation:
Answer:She will have to charge her customers at least 21 dollars an hour to help her family.
Step-by-step explanation: