Steven buys a pair of scissors instead of getting a haircut. he believes the scissors will last for a long time, while the haircut will only last a few weeks. in this case, scissors is a good, while the haircut is a service. why is a haircut considered a service here?
haircut is a service because services are
.

Drop out early hard to juggle both

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.