Question

A leprechaun places a magic penny under a girl's pillow. The next night there are 2 magic pennies under her pillow. The following morning she finds four pennies. Apparently, while she sleeps each penny turns into two magic pennies. The total number of pennies seen under the pillow each day is the grand total; that is, the pennies from each of the previous days are not being stored away until more pennies magically appear. How many days would elapse before she has a total of more than $2 billion ? (Proceed by trial and error.)

nothing days
(Type a whole number.) PLEASE HURRY

Answer 1

Answer: 31

Explanation:

2^x=2 000 000 000

log2^x=log2 000 000 000

xlog2 = log 2 000 000 000

x= log (2000 000 000)/log 2

x= 30.897352854

round to 31

gotchu bro