Answer:
A)29 and B) 21,
Step-by-step explanation:
First,in the sequence
, the parameter 
must to be a integer.
Second, we need to solve the equations by .
All the option in the problem represent an 
Then, we need to prove all number in the options, if the result is a integer number, this option can be part of the sequence.
For A)
For B)
For C)
For D)
Only A) and B) only A and B meet the requirement
Step-by-step explanation:
hope this helps you out with the problems
Answer:
the rate at which the distance between the planes is changing is 825 each hour
Step-by-step explanation:
The computation of the rate at which the distance between the planes is changing is shown below
= Travelling one plane + travelling another plane
= 450 mph + 375 mph
= 825 mi each hour
Therefore the rate at which the distance between the planes is changing is 825 each hour
We simply applied the above formula so that the correct value could come
And, the same is to be considered
