Question

In a sequence, the first term is 4 and the common difference is 3. The fifth term of this sequence is

Answer 1

$a_2=a_1+d$
$a_3=a_2+d=a_1+2d$
$a_4=a_3+d=a_1+3d$
$a_5=a_4+d=a_1+4d$

Since $a_1=4$ and $d=3$, the fifth term is

$a_5=4+4\times3=16$