Question

1. what is the sum of the first 5 terms of (2n+3)
2. how many terms are there in between -5 and 13 if they have common difference 3
3. what are the first 5 terms of the function f(x)= (3x+1)?​

Answer 1

Answer:

1. the five terms are 2n+2 ,2n+1, 2n, 2n-1, 2n-2
2. there are 19 tems they have not common difference