20
QuizMultiple Choice
Unit Test — Cumulative exam
Question 20 • AZ-College Prep Math B
According to the rule of 72, which statement is true?
Answer
A
An investment of $3,100 will double in 12 years at a compound interest rate of 5%.B
An investment of $9,000 will double in 10 years at a compound interest rate of 7%.C
An investment of $4,500 will double in 8 years at a compound interest rate of 9%.D
An investment of $3,000 will double in 4 years at a compound interest rate of 12%.