1. You sign a written contract with a landscaper to build a deck, flower beds and walkway by June 30^th for $10,000. The landscaper contacts you on June 11 and says that he cannot finish on time. You sign a piece of paper agreeing to pay an additional $1,000 in overtime to get the original job completed in time. Is that paper legally binding as is and what is one thing you landscaper could have done to ensure that your promise is legally binding? (2 marks)