1) According to the rule of 70, about how long will it take something that is growing at a rate of 4 percent per year to double?

Answer choices

A- 17.7 years

B- 18 years

C- 17.3 years

D- 17.5 years

2) According to the rule of 72, about how long will it take something that is growing at a rate of 14 percent per year to double?

Answer choices

A- 5 years

B- 5.29 years

C- 5.14 years

D- 14.29 years

3) Which of the following is true?

A- All of the other answers are correct.

B- The time required to double is always shorter if growth is compounded continuously, rather than periodically.

C- The time required to double using the rule of 72 is always in between the true values using continuous growth, and annually compounded growth.

D- The time required to double is always longer for the rule of 70, compared to the rule of 72.