Answer:
x=10, y=-3
Step-by-step explanation:
solve by addition/elimination
It’s either b or C because your going down.... but I think it’s B
Keiko sent 30 text messages Scott sent 20 text messages chang sent 80
45+5.25n>108
-45 -45
————————
5.25n > 63
Divide both sides by 5.25
n>12
