48 I believe with the profit included it the total pricing.
Answer:

Step-by-step explanation:
Let the total amount be x
Let's solve now

hope this helps you.
Answer:

Step-by-step explanation:
Given 
Let 
Interchange x and y

Solve for y, by first squaring both sides


Hence

The last choice is correct
Answer:
yes 15/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
did you ever get the answers ?