1). Hector went on vacation for several weeks. While Hector was away his neighbour, Gianna, decided to weed and maintain his large vegetable and flower gardens, as well as cut the grass in his large backyard several times.

On his return, Hector was delighted with the way his backyard and gardens looked. He told Gianna to come by his house on Friday and he would give her $300.00 for having done such an excellent job, especially with the grass cutting. On Friday Gianna knocked on Hector's door as requested but Hector, having had second thoughts about the money, told her he had changed his mind and she should take her mower and ride!

(a) Explain whether Gianna can force Hector to pay her the $300.00.

(b) On what basis would the amount of money to be paid to Gianna be determined if there was a contract present but Hector and Gianna never discussed the price for her services?