Answer:9
Step-by-step explanation: x+4=13
x=13-4
x=9
Answer:
750 people will come in at 15 hours.
Step-by-step explanation:
350 divided by 7=50 50 times 15=750
sorry i don't know the rest
Answer: 5.4
Step-by-step explanation:
I think B is the answer. I am not sure