Answer:
$562
Explanation:
Given : Donna has a fixed rate of $105.00 weekly, $15.00 per week for insurance, and she spends $20.50 weekly on gas.
To Find: What will her cost be per month (4 weeks)
Solution:
Weekly fixed rate = $105
Insurance cost per week = $ 15
Gas cost weekly = $ 20.50
So, Total cost =

So, total cost of 1 week is $140.5
Total cost of 4 weeks =

=

So, her total cost per month is $562.