Can someone pls show how to do this is with explanation

 and < Y = < C

Step-by-step explanation:

I. When congruent means equal to...

So ΔXYZ = ΔBCA

XY = BA

< Y = < C

That makes and < Y = < C

Hope that help :)

16 is the absolute value

step-by-step explanation:

- (2, -7)

- lines r and s and lines t and u must be parallel