Question

Billie jean has $120 to spend and wants to buy either a new amplifier for her guitar or a new mp3 player to listen to music while working out. both the amplifier and the mp3 player cost $120, so she can only buy one. this illustrates the basic concept that

Answer 1

This illustrates the basic concept that a trade-off is sometimes needed. People can not always get exactly want they want and when this happens they must be willing to sacrifice something to get something back in return. Billy must choose between the guitar or new mp3 player. He will gain one of them but because the trade-off, he will lose the ability to get the other item.