Well I'd say it's any number before or after 11. Since it says 2 more tens it could be 31 by adding. You can also use algebra to help you.
6.39 :) because in the tenths place there is a 3 and the six rounds that up to a 4!
The answer is the first one, (2)
$518.5 = $375 + $41x
Now that we have our equation, let's solve for the # of hours
Subtract $375 from both sides
$143.5 = $41x
Divide both sides by $41
3.5 = x
The number of labor hours was 3.5
I’m pretty positive the answer is option three, one over twenty-five. Mainly because every second increased is 25ft higher from the ground.