Wich expression defines the given series for seven terms? 8+13+18+

a+6d will defines the series for seven terms i.e. 38.

Step-by-step explanation:

Since we have given that

Here, a = first term = 8

d = common difference is given by

So, we need to find the seven terms:

So, here n = 7

So, it becomes,

Hence, a+6d will defines the series for seven terms i.e. 38.

36/60

36/2=18

60/2=30

18/30

18/3=6

30/3=10

6/10

6/2=3

10/2=5

your final answer would be 3/5 of an

hope this !

b. 2 and 4

step-by-step explanation: