Solve for Angles X and Y

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

54.864 meters

step-by-step explanation:

y= -2x+4, have a great day

the answer is about 24 dollars