Answer:
Image result for What does the rule of 72 tell us? What is the formula used? Amy heard Dave Ramsey say that she could expect an average of 12% returns when she invests in mutual funds. Amy has $10,000 to invest. How long will it take Amy’s investment to double?
Divide 72 by the interest rate on the investment you're looking at. The number you get is the number of years it will take until your investment doubles itself.
Explanation:
Answer: $100
Explanation:
Opportunity cost is the benefit that we forgo when another option is chosen thereby leaving out something else. Based on the information given, Ed's opportunity cost of going to the ball will be calculated as the addition of the income that's lost when he takes some time off from his work and the expenses that he incurs on the base ball game. This will be:
= ( 4 × $15) + $25 + $15
= $60 + $40
= $100
The opportunity cost is $100.