Question

EASY PROBLEM! metal for right answer
Find the sum of the first seven terms of the sequence 4, 12, 36, 108, … .
a. 1,456
b. 1,457
c. 4,372
d. 4,374

Answer 1

please help

Answer 2

4 + 12 +36 + 108 +324 +972 + 2916 = 4,372

Answer 3

k i have another one though

Answer 4

A chessboard has 64 squares. George places 1 grain of rice on the first square, 2 grains on the second square, 4 grains on the third square, 8 grains on the fourth square, and so on, until he has placed grains of rice on 10 squares.
Once George has put rice on the 10th square, he has placed a total of _____________grains of rice on the chess board.

Answer 5

um k