Question

Please answer correctly!!!!!

Answer 1

The top number is 4 and t =1, so you need to replace t with 1, find the answer, then replace t with 2 through 4, then find the sum of all of them:

6^1-1 = 6^0  = 1

6^2-1 = 6^1 = 6

6^3-1 - 6^2 = 36

6^4-1 = 6^3 = 216

Sum = 1 + 6 + 36 + 216 = 259

The answer is B.

Answer 2

Answer:

B 259

Step-by-step explanation:

The sum is 4 terms, so we need to add the 4 terms

Term 1: 6 ^ (1-1) = 6^0 = 1

Term 2: 6^ (2-1) = 6^1 = 6

Term 3: 6^ (3-1) = 6^2 = 36

Term 4: 6^ (4-1) = 6^3 =216

The sum is  1+6+36+216 = 259