If QRST is a kite, find mZQRS. R (11x - 6) 79° S (4x + 13) T mZQRS
I really need help!

Step-by-step explanation:
4x +13 +79+79+ 11x-6 = 360
15x +165 = 360
15x = 195
x =13
QRS = 11(13)-6 = 137