Question

5+9+13+17+.... uptown 23 terms =

Answer 1

Answer:

Step-by-step explanation:we know

the common difference is 4

The first term is 9

Therefore

an=a+(n-1)d

A23=9+(22)4

A23=53

Answer 2

Answer:

96

Step-by-step explanation:

a=5

d=9-5= 4

T23 = a +( n-1) d

= 5+(23-1) 4

= 5 + 22× 4

= 5 + 92

= 96