a n =2n+3 find the first 5 terms

Answer 1

Just replace n with 1, 2, 3, 4, and 5

e.g.
a1 = 2(1) + 3 = 2+3 = 5
a2 = 2(2) + 3 = 4+3 = 7
a3 = 2(3) + 3 = 6+3 = 9
etc