You make one penny the first day, two pennies the second day, four pennies the third day, eight pennies the fourth day, how many will i mak for 30 days
+118658 You make one penny the first day, two pennies the second day, four pennies the third day, eight pennies the fourth day, how many will i mak for 30 days
1+2+4+.......
a=1
r=2
n=30
\(S_n=\frac{a(r^n-1)}{r-1}\\ S_{30}=\frac{1(2^{30}-1)}{2-1}\\ S_{30}=2^{30}-1 \)
2^30-1 = 1 073 741 823 cents = $10 737 418.23
