Question

Could someone please help me

Answer 1

what do you need help with?

Answer 2

C

Explanation:

i = 1

• 8 * (1/4)^(1 - 1)
• 8 * (1/4)^(0)
• 8 * 1

8

i = 2

• 8 * (1/4)^(2 - 1)
• 8 * (1/4)^(1)
• 8 * 1/4

2

i = 3

• 8 * (1/4)^(3 - 1)
• 8 * (1/4)^(2)
• 8 * 1/16

1/2

Answer

8 + 2 + 1/2 = 10 1/2

10 1/2 = (2*10 + 1)/2

21/2

C