Aaron works 3 1/2 hours every Saturday at a rate of $7.25 per hour. He is paid every four weeks. If his boss gives him a $1.00 raise, how much will Aaron be paid in his next paycheck? A. $95.70 B. $101.50 C. $108.90 D. $115.50
Aaron currently earns 3.5 * $7.25 = $<<3.5*7.25=25.375>>25.375 per week.
His hourly rate after a raise will be $7.25 + $1.00 = $8.25.
So, he will earn 3.5 * $8.25 = $<<3.5*8.25=28.875>>28.875 per week.
Thus, he will earn $28.875 * 4 = $<<28.875*4=115.50>>115.50 in his next paycheck.
Therefore, the correct answer is D. $115.50. Answer: \boxed{D}.