Answer:
$1.00
Step-by-step explanation:
5.00 - 20% is just 5* 2/10. If the integer '5' is made into a fraction, it would be 5/1, meaning the equation would be equivalent to 5/1 * 2/10 which is just 10/10. 10/10 is also equivalent to 1, meaning if Charles purchased the ticket early, he would save $1.00 and would only have to pay $4.00 for the school movie night ticket.
