You finally get an allowance! You put $2 away in January, $4 away in February, $8 away in March, $16 away in April and followed this savings pattern through to December. How much money do you have in 12 months?

I think it is 4096

If i'm correct, this is basically 2 to the power of 13.

Step-by-step explanation:

The answer would be 8192.

1+1=2

2+2=4

4+4=8

8+8=16

16+16=32

32+32=64

64+64=128

128+128=256

256+256=512

512+512=1024

1024+1024=2048

2048+2048=4096

4096+4096=8192

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb