First, let's determine Aaron's current weekly earnings before the raise.
Aaron works for 3 1/2 hours every Saturday, which can be converted to hours in decimal form:
3 1/2 hours = 3 + 1/2 = 3.5 hours
Now, we calculate his current earnings per week:
Current rate = $7.25 per hour
Weekly earnings = Hours worked per week × Hourly rate = 3.5 hours × $7.25/hour = $25.375
Next, we find out his earnings over four weeks, as he is paid every four weeks:
Current earnings over four weeks = Weekly earnings × 4 = $25.375 × 4 = $101.50
Now, Aaron's boss gives him a $1.00 raise, so his new hourly rate will be:
New hourly rate = Current rate + Raise = $7.25 + $1.00 = $8.25
Now, we calculate his new weekly earnings with the raise:
New weekly earnings = Hours worked per week × New hourly rate = 3.5 hours × $8.25/hour = $28.875
Now, we find out his new earnings over four weeks with the raise:
New earnings over four weeks = New weekly earnings × 4 = $28.875 × 4 = $115.50
So, Aaron will be paid $115.50 in his next paycheck.