Answer:
C
Step-by-step explanation:
To solve this problem, you must first understand what operation to use. If Alex owes the cell phone company money, he loses that money. So, you must subtract.
Alex has $239.64 dollars. Subtract the amount he owes from that ($45.87).
239.64 - 45.87 =
$193.77, or C.
After paying the cell phone company, Alex has $193.77 dollars left.