Just a guess, but the angle inside the triangle that's not x or y is the remaining angle after subtracting the 30 degrees shown. That makes the non labeled angle inside the triangle 150 degrees. since all triangles are 180 degrees, this means x and y add up to 30. They look roughly the same, so i'd guess they're both 15 degrees.
140 + 10w = m
10w = $10 per week
140 = what he started with
Answer:
x=27
3x +9 you have to multiply instead of add 3 times 9 is 27
