Question

Find the length of AB

A.
2
B.
6
C.
21
D.
31

Answer 1

Find the length of AB

A.2
B.6
C.21
D.31

Answer 2

I will give a medal! Please please help

Answer 3

the 2 lots of 3 line segments are in the same proportion '

so 6/7.5 = 2x / (2x + 1)

solve this for x

then plug in this value of x to get the 3 segments on left side
add them up to get length of AB

Answer 4

x=2

Answer 5

so how do i plug this in