Ceteris paribus, a 10 percent increase in income results in a 50 percent decline in the quantity of potatoes purchased. this implies potatoes can be categorized as

a. complements

b. substitutes

Ceteris paribus, a 10 percent increase in income results in a 50 percent decline in the quantity of potatoes purchased. this implies potatoes can be categorized as substitute.

A substitute is an item that is being used to fill the gap of something that a consumer can not get. They may not be able to receive that item if they can not afford it. In this case, there was a rise in income and a decrease in potatoes so we can gather that many consumers were using the potatoes as a substitute for another good.

first one

explanation:

750 h and costs $0.60 per bulb.