Answer:
only 5 points? cmonnn
Step-by-step explanation:
x=75
∆FSJ~∆DYJ
so the sides are proportional
SJ/YJ=FJ/DJ
(63+42)/42=(x+50)/50
105/42 ×50=x+50
125-50=x
it's
3:4
18:24
27:36
36:48