Answer:
the simplified answer is 3 3/4
Step-by-step explanation:
3 is the correct answer i think
The answer is $630.57
You first need to add both the borrowed money and the interest then divide it all by 30
$16,000+$2,917.10= $18917.10
$18917.10/30= $630.57
Answer:
pairs
Step-by-step explanation:
Given
Profit on selling 'x' pairs of shoes is 
Find the derivative of the function to find out the critical points

Thus, for 4 pair of shoes profit is maximize.