Final answer:
The income elasticity for meals at a restaurant cannot be determined from the given information.
Step-by-step explanation:
The income elasticity for meals at a restaurant cannot be determined from the given information. Income elasticity measures the responsiveness of the quantity demanded of a good to a change in income. In this case, we are given that the starting salary increased by $250, but we do not have information about how it affects the demand for meals at a restaurant. We would need more data such as the change in price or quantity demanded of restaurant meals to calculate the income elasticity.