The correct answer is: H.
Let
be the length of one leg, and
be the length of the hypothenuse. Finally, let
be the measure of the angle between them. Then, the following relation holds:

Plugging your values, we have

Solving for x, we have

Answer:
The answer is A. 2x + 4y is lesser or equal to 75 because they are talking about 2 pairs of jeans first
2x+38=180
2x=142 (or x+x=142 from which 2x=142)
x=71
The unknown angles are each 71
You know this answer is logical as, since two sides are 21 it hints that we are looking at an equilateral triangle, which means two of its angles will be the same