Answer:
x=3
Step-by-step explanation:
180-120=60
60+15x+5+22x+4=180
69+37x=180
37x=111
6 buses
138 students / 23 students per bus = 6 buses
A) d 5s + 9
-3/5
2/3 *-9/8*-4/5*-1= -3/5
