Carl McFadden had five office visits at $25 each, three injections at $8.50 each, an x-ray at $26.60, and a home visit at $40.00. He has a $4.60 credit on his account. What will be the amount of his next bill?
Carl McFadden's total cost for office visits is 5 * $25 = $<<5*25=125>>125.
His total cost for injections is 3 * $8.50 = $<<3*8.5=25.5>>25.50.
His total cost for all services except his credit is $125 + $25.50 + $26.60 + $40.00 = $<<125+25.5+26.6+40=217.10>>217.10.
His next bill will be $217.10 - $4.60 = $<<217.10-4.60=212.50>>212.50. Answer: \boxed{212.50}.