Answer:
For the first question, he would raise $38.
Step-by-step explanation:
1 x 12 = $12
2 x 13 = $26
12 + 26 = $38
Those number are all powers of 10
10= 10^1
100= 10^2
1000= 10^3
and so on...
The exact calculations:
Principal, P=3000
interest rate = 33% per year
Period, t=10 years
Future value
Interest
= future value - principal
= 81337.92-3000
=
78337.92 (to the nearest cent)
1/2, because 3/10 + 1/5 = 5/10. that means that the other part of 1 is 5/10 or 1/2