Question

ben saved 1 penny on january 1, 2 pennies on january 2, 4 pennies on january 3, and 8 pennies on january 4. if ben continues to increase his saving at this rate, when will he have saved a total of $10 or more? show your work

Answer 1

.01
.02
.04
.08
.16
.32
.64
1.28
2.56
5.12
10.24

Answer 2

if you have 5,368,709.12 can anyone help with what is the interest rate and number of periods for this? thanks