What’s the answers?...

Answer:
[tex]x=10[/tex]
[tex]z=2[/tex]
[tex]y=5[/tex]
Step-by-step explanation:
We know the triangles are congruent, therefore, each corresponding side of the triangle is also congruent!
1) Set EF≅CB
[tex]x+15=2x+5[/tex]
[tex]x+10=2x[/tex]
[tex]x=10[/tex]
2) Set ED≅CA
[tex]10z-5=3z+9[/tex]
[tex]10z=3z+14[/tex]
[tex]7z=14[/tex]
[tex]z=2[/tex]
3) Set DF≅AB
[tex]4y=8y-20[/tex]
[tex]-4y=-20[/tex]
[tex]y=5[/tex]