For each of the following scenarios determine if demand if elastic, inelastic, or unit elastic.
a. Joe can sell 100 shovels if he prices his shovels at $12 or he can sell 130 shovels if he prices his shovels at $10. The demand for shovels is _______________.
b. Emily sold lemonade on Tuesday for $.50 a cup and she sold 100 cups. On Thursday she raised the price to $1 a cup and sold 50 cups. The demand for lemonade is _________.
c. Martin can sell 2000 boxes of detergent if the price is $10 and 1800 boxes if the price is $11. Demand for detergent is __________.