the percentage change in the quantity demanded divided by the percentage change in income

the percentage change in income divided by the percentage change in the quantity demanded.

the percentage change in the quantity demanded of a good divided by the percentage change in the price of that good.

the percentage change in price of a good divided by the percentage change in the quantity demanded of that good

price elastic.

unit price elastic

price inelastic

none of these answers

price elastic.

unit price elastic

price inelastic.

none of these answers

The good is a luxury.

There are a great number of substitutes for the good.

The good is a necessity

None of these answers

transportation

taxi rides

bus tickets

airline tickets