can anyone help me pls?

Question 1 1 pts Amy and Bob enter into a contract for Bob to perform waste management services for Amy's commercial properties. Later, Bob alters a material term-increases the price-without Amy's knowledge or consent. Amy can treat the contract as discharged. must adapt his performance accordingly. must determine whether Bob's alteration constitutes substantial performance can alter a material term, such as the payment date, without Bob's consent. Question 3 1 pts A contract is substantially performed when performance creates substantially the same benefits as those promised in the contract True False Question 4 1 pts Building Restoration, Inc. (BRI), enters into a contract to refurbish an old train depot for Casual Dining, Inc., to open as Eat Up Restaurant. In particular, the contract calls for all plumbing pipes to be cooper and to be made by Continental Steel & Tube Co. However, due to supply issues that will not be available for 8 months. However, there is similar cooper pipes of equal quality made by California Metal & Supply available. If BRI completes the work as promised in the contract but with pipe made by California Metal & Supply the performance will be classified as Complete Absolute Material Substantial