If you are in a 25 percent tax bracket then every dollar of your income will be taxed at 25 percent. True False Given what you've learned about the time value of money, when should a person start saving for retirement? at 5055 years of age At 4045 years of age At 35-40 years of age When he or she first starts receiving a salary An example of an opportunity cost is the Jimmy John's sandwich that you could have had, but did not because you used that money to buy Kansas City Cheifs Football Tickets. True False