A grocery store sells two kinds of citrus fruit: oranges and grapefruit. These are competing - when the price of one increases, it causes more of the other to be sold.

Let Q(g, r) represent the quantity (in kilograms) of grapefruit sold with g being the price of grapefruit ($/kg) and r being the price of oranges ($/kg).

(5) A grocer}r store sells two kinds of citrus fruit: oranges and grapefruit. These are competing - when the price of one increases, it causes more of the other to be sold. Let Q(g,r) represent the quantity (in kilograms) of grapefruit sold with 9 being the price of grapefruit ($fkg} and r being the price of oranges ($fkg). Interpret the equation @ _ _ 3'? (3'4) Qr(3r 4) _ 6' Use the contextual words or phrases \"quantity of grapefruit sold\