Question

19. Ciara is saving for a video game. The first week, she puts $2 dollars in an

envelope. Each week after that, she puts twice as much in the envelope as
she did the previous week. How many dollars does she save on the 6th
week? How many dollars does she save in all?

Answer 1

On sixth week , she collects 2⁶ = $64.

She saves 2(1+2+4+8+16+32) = $126 in all.