Right triangle would be the answer your looking for>
The formula for compound interest is:

Given data:

a. After ten years, that is t = 10 years, the amount in the account will be

b. After twenty years, that is t = 20 years, the amount in the account will be:

c. The time it takes for Harry's initial account value to double will be:

Therefore, the time it takes Harry's initial account to double is approximately 11 years
Answer:
32115
Step-by-step explanation:
Step1
Converting 431 to base 10.
4*102=400
3*101=30
1*100=1
Adding all to get Ans=43110
Step2 converting 43110 to 5
The equation calculation formula for 43110 number to 5 is like this below.
5|431
5|86|1
5|17|1
5|3|2
5|3|3
Ans:32115
The answer to the question is 8