Which one of the following is closest to the sum of the series

n=0

3

n+1

+5

n

2

3n

{"version":"1.1","math":"\(\sum_{n=0}^\infty \frac{3^{n+1}+5^{n}}{2^{3n}\)"}?

Question 3 options:

a)

7.54

b)

7.52

c)

7.47

d)

7.49

e)

7.45

f)

7.50

Question 3 (2 points) 3n+l+5n 23!: Which one of the following is closest to the sum of the serieszriio