Please determine, with reasons, whether a partnership exists in the following situations: i. A bus company and a radio station collaborate by broadcasting advertisements on buses. The radio station is responsible for creating the advertisement and providing the content, while the bus company is in charge of installing and maintaining the audio system. The bus company and the radio station split proceeds from the advertisements in a ratio of 80:20.

ii. Company A lets out premises to company B. Apart from a fixed rent, company A also takes 10% of company B’s profits after taxes as rent.

iii. A well-known bakery chain holds a charity bake sale together with the Community Chest. After a week, the proceeds from the sale are donated to the Community Chest after deducting production costs. The Community Chest handles all promotional work related to this activity.