Answer:
The maximum number of days for which Sandra can rent the car on her budget is 6.
Step-by-step explanation:
Let n be the number of of days for which Sandra can rent the car on her budget.
Fixed rent = $30
Daily fee for 1 day = $10
Daily fee for n days = 10n
So, Total fees = 30+10n
Sandra's budget is $90 .
She cannot spend more than $90.
So, inequality becomes :
So, the maximum number of days for which Sandra can rent the car on her budget is 6.