Answer:
A situation could be that you have to buy two objects, sunglasses and earrings and have to spend 40 or more dollars. It's not realistic, but you could alter it into something like that. Usually you would have a budget, so it would be easier doing less than or equal than instead of greater than or equal to. x could be the cost of one item, and y would be the cost of the other. The co-efficients (numbers in front) would be how many of each you bought.