Answer:
They must work for more than 4 hours for Tom's bonus to be greater than Sara's
Step-by-step explanation:
Tom pay: 12.75x+25
Sara pay: 11.75x+29
Tom>Sara = 12.75x+25>11.75x+29
subtract 25 both sides
12.75x>11.75x+4
subtract 11.75x both sides
x>4