Answer:
A. what is the profit made by the retailer if he sells the article to the customer at the catalogue price?
10000
B.What profit is made by the manufacturer if the catalogue price is 50% above the manufacturing price?
25000
The answer is the transitive property
90 x 7 = 630 square feet total
0.5 fluid ounce per sq ft
630 x 0.5 = 315 fluid ounces are needed
The expression is given by:

So we need to find an equivalent equation for this problem. Then, we will apply some mathematical rules:
Extracting the common factor 1/4, then:

Or extracting the common factor -1/4, then:

So, comparing these solutions with the answers about, there is no any answer that matches.