Answer:
The income elasticity of demand for frozen dinners is negative when there is an increase of hourly wages. -51%
Step-by-step explanation:
When the income elasticity is negative it means that the good is inferior so when the income is increased, the demand of the good decrease beacuse its demand change to a better quality good. For instance in this case a fresh meal.
income elasticity % = % change in quantity / % change in income
(((3350-3550)/3550)/((20-18)/18))*100