Answer:
Only B,
Step-by-step explanation:
Because it is all addition it does not mater what order they are in,..
What did the answer end up being?
The answer is 63
Glad I could help :)
30
1/2 x (a+b) x h = area
1/2 x ( 40 + x ) x 50 = 1750
1/2 (40 + x )= 1750/50
20 + 1/2x = 35
1/2 x = 35 - 20
x = 15 x 2
= 30
I hope this is right :)