Answer :
Answer:
4 hours
Step-by-step explanation:
Let x = hours
$78 = $20 + $12x
collect like terms
78 - 20 = 12x
58 = 12x
x = 4.8 hours
the maximum hours is 4 hours
Answer:
4 hours
Step-by-step explanation:
Let x = hours
$78 = $20 + $12x
collect like terms
78 - 20 = 12x
58 = 12x
x = 4.8 hours
the maximum hours is 4 hours