Question

You go to the bank to trade a dirty dollar for a new, clean one. The cashier tells you the trade is not necessary because currency is

Answer 1

Felicia knits scarves and sells them to her friends. The first week, she knits four scarves and sells three for $50 each. The next week she buys her yarn at a discount, so she knits six scarves and is able to sell five for $40 each. Which number represents quantity demanded at $40?