Answer:
$7.94
Explanation:
The computation of the monthly fee that should be charged is given below;
Given that
Operating expense= $5.45
Non operating expense = $1.70
So, Total expense = $7.15
Now
Profit margin = 11% of Total cost
= 11%* of $7.15
= $0.7865
Now Total fee to be charged
= Total cost + Profit margin
= $7.15 + $0.7865
= $7.9365
= $7.94