Brian billed his neighbor a total of $81.80 for the landscaping work he did. The cost of the materials was $30 and he charged $14 per hour for his service. How many hours did he work?(1 point)

1 answer

Let x be the number of hours Brian worked.

The total cost can be expressed as:
Total cost = Cost of materials + Cost of service
$81.80 = $30 + $14x

Subtracting $30 from both sides:
$51.80 = $14x

Divide both sides by $14:
x = 3.7

Therefore, Brian worked for approximately 3.7 hours.