Answer:
$5.25 if returned 7 days late
Explanation:
So we know that 4 days late is 3 dollars
We can find the unit rate
3/4 is 0.75
So 75 cents for every late day
Now we just multiply that by 7
0.75*7=5.25
so 7 days, 5.25
**porportional relationship equation**
=
Now cross multiply
21=4x
x=5.25
Same results