The expression "there's no such thing as a free lunch" means if one person gains, someone else must lose. each person must pay for exactly what he or she receives. the use of resources to produce a good has an opportunity cost because of scarcity. you cannot have a free lunch at the expense of someone else.

answer; /// multipotentialite means a person who have many different interests and creative pursuits in life; (one true calling);

polymath; means a person   of wide-ranging knowledge or learning;

scanner; means; a device that captures images from photographic prints,posters,magazine pages.ect;

answer; rapid growth in buyer demand and high buyer switching cost;

answer: b. false

the staff is a set of five horizontal lines and four spaces which represent a different musical pitch. the lines and the spaces are numbered from bottom to top, the bottom line is the first line and the fifth line is the line on the top. the notes on the top of the staff (fifth line) have a higher pitch than a note at the bottom of the staff.