Answer: 22^yd
Step-by-step explanation:
Answer:
you did not even put anything except "HELP PLEASE IM HORRIBLE WILL GIVE BRAIN LIST IF RIGHT"
|PR| = |PQ| + |QR|; |PQ| = |QR| conclusion |PR| = 2|PQ|
|PQ| = 3y; |PR| = 42; |QR|=?
subtitute
42 = 2(3y)
6y = 42 |divide both sides by 6
y = 7
|QR| = 3(7) = 21