Question

. If you saved $2.00 on january 1, $4.00 on february 1, $8.00 on march 1, $16.00 on april 1, and so on. how much money would you save in one year?

Answer 1

=2+4+8+16+32+64+128+256+512+1024+2048+4096
=8190

Answer 2

$4096 

$2.00^12 

12 months in a year, doubles every month