Answer:
13
Step-by-step explanation:
3x-5=y+12+5y-4
Since we know the polygons are similar, the side length ratio of each side must be equal.
13/5 = x/10
Multiply both sides by 10
x = 26
That's your answer. Have a nice day! :)
Answer:
B
Step-by-step explanation:
I think it's 9.68 but I might be wrong