Question

@Kevin

Answer 1

wait

Answer 2

ok

Answer 3

OMG, it's 9 m, I thought it's --> ? symbol xD

Answer 4

1.25/5 = x/(x+9)
1.25*(x+9)=x*(5)
1.25x+11.25=5x
1.25x+11.25−5x=5x−5x
−3.75x+11.25=0
−3.75x+11.25−11.25=0−11.25
−3.75x=−11.25
−3.75x / −3.75=−11.25 / −3.75
x = 3

Answer 5

Thanks!

Answer 6

yw