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.
Answer:
3^7 * 3^(-4) = 3^(7 - 4) = 3^3 = 27
Answer:
5,028
Step-by-step explanation:
Answer:
4[3x-2]
Step-by-step explanation: 12x-8
Hope this helped out
Your anbswer is gonna be 5,7