Final answer:
Mike's total annual expense for tuition, fees, and textbooks is $36,690, resulting in an average monthly expense of $3,057.50 for college.
Step-by-step explanation:
To find the average monthly expense for Mike, we will first calculate Mike's total expenses for tuition, fees, and textbooks for the entire year. Mike takes 16 credit hours per quarter, and at a cost of $725 per credit hour, his expenses for tuition and fees per quarter would be 16 credit hours × $725 = $11,600. Since there are three quarters per year, his annual expense for tuition and fees is $11,600 × 3 = $34,800.
Next, we consider the cost of textbooks, which average $630 per quarter. Over three quarters, this adds up to $630 × 3 = $1,890 for the year.
To find the total annual expense, we add the cost of tuition and fees to the cost of textbooks, resulting in $34,800 + $1,890 = $36,690.
Finally, to calculate Mike's average monthly expense, we divide the total annual expense by 12 months: $36,690 / 12 months = $3,057.50.
Therefore, Mike's average monthly expense for college is $3,057.50.