Answer: $2.50
Explanation:
The following payments are made by Dustin's Lawn Care Service Customer
Mrs. Schmitt = $15.75 
Mr. Jones = $9.25 
Mrs. Adams = $22.50 
Mr. Meyer = $50.00 
To get our answer, we need to add all the payments of the other three. This will be:
= $15.75 + $9.25 + $22.50
= $47.50
The answer will now be:
= $50.0 - $47.5
= $2.50