What's the answer to number 1 on the picture?

Use the rule of 72 to calculate how long it will take for your money to double if its earning 6% in interest. a. 12yrs b. 16yrs c. 36yrs d. 72yrs

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What's the best strategy for avoiding atm fees? only use atms close to your house only use atms to withdraw cash only use atms in your bank’s network only use atms you have used before