Answer:
8.36
Step-by-step explanation:

A-8x+12
B-6(2x+3)
C-5(2+3x)
Answer:
x=3
Step-by-step explanation:
7x-3=18
7x=18+3
7x=21
x=3
Division of a fraction is the equivalent of multiplying by its reciprocal
ex.

i suggest you try to remember this concept
in terms of your question
from this point, just multiple the numerators together and denominators together, then simplify if necessary
fyi- difference of squares

relating that to

also a side note, you might want to factor out the 4 first in the top fraction
50% is greater than 33 1/3% so overall it would be greater than the original