Which of the following combinations of goods are complements and which are substitutes?

Question

a mathematics class and an economics class

tennis balls and a tennis racket

steak and lobster

a plane trip and a train trip to the same destination

bacon and eggs

Answer 1

Maths and economics = complements

Tennis balls and racket = complements

steak and lobster = substitutes

Plane and train trips = substitutes

Bacon and eggs = complements  

Answer 2

bacon and eggs ------complements (things that go together)

tennis balls and a tennis racket-----complements

mathematics and economics class i would have to say complements b/c you can't substitute maths for econ or vice versa

a plane trip and a train trip to the same destination----substitutes

steak and lobster----i would say they're complements.

hope i was helpful

Answer 3

a mathematics class and an economics class: complement

tennis balls and a tennis racket: complements

steak and lobster: substitutes or complements, depends on your preference

a plane trip and a train trip to the same destination: substitutes

bacon and eggs: could be either substitutes or complements