First of all, we need to deduce the price of a single camera:

Now, we know that he profits 36 dollars from each camera. So, we are asking: which percentage of 150 is 36? We have

This equation literally says: 36 is x-percent of 150. And we need to solve for x:

The answer is 7 sections
In this type of question, you just need to divide the total length of the line that drawn by Jason with the length of sections that Jason want.
So, the calculation would be:
(7/8) / (1/8)
= 7/8 x 8/1
= 7 amount of sections
C because if you divide 3/12 you get .25 but 4/18 is .22, which is the better deal
Answer:
$2.25
Step-by-step explanation:
8=1$
each one is 25¢