Answer:
B
Step-by-step explanation:
I did it in my head but pretty much just add the 5x-2 and x+ 12 then set it equal to 40. u get x = 5. plug x back in and you get 23 and 17
The answer is B
5x - 2 + x + 12 = 40
6x + 10 = 40
6x = 30
x = 5
5(5) - 2
25 - 2
PQ = 23
(5) + 12
QR = 17
