Final answer:
To find the height now, we can multiply the original height by 0.21 to determine the increase in inches and then add the increase to the original height.
Step-by-step explanation:
To find the height now, we need to determine the increase in height over 100 years. If the man is 21% taller than they were 100 years ago, it means their height has increased by 21% over the original height.
To calculate the increase in inches, we can multiply the original height by 0.21. So, the increase in inches will be: 60 inches * 0.21 = 12.6 inches.
To find the height now, we add the increase in inches to the original height. So, the height now is: 60 inches + 12.6 inches = 72.6 inches.