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?

Answer 1

Let x be the number of hours Brian worked.

The total cost is the sum of the cost of materials and the cost of labor:
$30 + $14(x) = $81.80

Now we solve for x:
$14(x) = $51.80
x = $51.80 / $14
x = 3.7

Therefore, Brian worked for approximately 3.7 hours.