Answer:
3,6,9,12
Step-by-step explanation:
Add 3 to every number after 3.
plane 1 travels 395 miles in 1 hour
plane 2 travels 422 miles in 1 hour
together, they travel (395+422) 817 miles in 1 hour
to have 2451 miles between then, they'd need to travel

so in 3 hours, they'll be 2451 miles apart
Answer:
7(1/2)
Step-by-step explanation:
Answer:
you have it right its 29 and 5
Step-by-step explanation: