Answer:
they are complementary
Step-by-step explanation:
$76.80 minus 12 1/2 is $64.30.
The percentage of solution o after distillation 36%
60% is 0.60 so you do 0.60 x 29 which = to 17.4
so your answer is 17.40 or 17.4 is 60% of 29
ANSWER
See below
EXPLANATION
Given

and



Expand:



Since the denominators are the same, they will cancel out,
