Mr. Roosevelt is leaning a ladder against the side of his son's tree house to repair the roof. The top of the ladder

reaches the roof, which is 18 feet from the ground. The

base of the ladder is 5 feet away from the tree. How long

is the ladder?

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

answer: 414,377,008

step-by-step explanation:

just multiply it

so, converting firstly the mixed fractions to improper fractions and then "adding".

the answer is a beach is the best place to be