What's the nth term for 3,4.5,6,7.5

Step-by-step explanation:

The following sequence is in AP

Suppose the first term is denoted by"a" and the common difference by"d"

a=3

d=4.5-3 = 1.5

the nth term = a + (n-1) d

= 3 + (n-1) 1.5

=3+1.5n - 1.5

=1.5+1.5n