Which of the numbers below could be terms in the sequence an=4n-7 a)29 b)21 c)20 d)28

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