please help me with this problem:)

RU middle line of the trapezoid, so
[tex] \frac{40 + x}{2} = 69 \\ 40 + x = 138 \\ x = 98[/tex]
Answer: VW=98
Answer:I think 98, but Im not sure
Step-by-step explanation:
It was increasing from the first problem by 29 and in the pictures the little lines in between were the exact same so I just added 29 to 69