Answer:
They could save about $5 less per month and still have enough money.
Explanation:
Tuition for one year at a public two-year college is $3,125.
In 8 years, tuition is expected to increase 32%.
Arthur is 10 years old.
He will join college at 18 .
So, His tuition fees is expected to increase 32%.
So, tuition fee of one year for him=

=

Arthur’s family plans to save for his college costs for 5 years.
1 year = 12 months
5 years = 1285 = 60 months
So, the family need to save in 1 month =

=

So, they need to save 68.75
We are given that the family saves $75 per month
Difference = 75-68.75=$6.25
So, They could save about $5 less per month and still have enough money.
Option C is correct.