If you earn 10% per year on your bank account, how long will it take an account with $105 to double to $210? Do not round intermediate celculations. Round your answer to 2 decimal places.) Number of years .

n= 7.27 years

Explanation:

Giving the following information:

Interest rate= 10%

Future value (FV)= $210

Present value (PV)= $105

To calculate the number of years to double the investment, we need to use the following formula:

n= ln(FV/PV) / ln(1+i)  

n= ln(210/105) / ln(1.1)

n= 7.27 years

the correct answer option is b. a single paragraph.

explanation:

when you are thinking about paragraph​ topics, you should always choose a subject that can be adequately addressed in a single paragraph.

a paragraph is a piece of writing consisting of a few sentences that deal with a single theme. it has only a single idea that the paragraph revolves around and talks about.

so a paragraph topic must be chosen wisely where a single idea can be communicated in a single paragraph.