Answer:
Step-by-step explanation:
x=3
Answer:
C
Step-by-step explanation:
Answer:
x=-1/4
Step-by-step explanation:
this might be wrong
Answer:
Avg speed 550 miles per hour
Step-by-step explanation:
with the wind 1200 miles traveling
1200/(550+50) = 2 hours
Against the wind
1000/(550-50) = 2 hours