Business Contracts

Amy buys all the Yo-Yo's Bob can produce. This is a(n):

Bob agrees to mow Amy's law 10 times, and offers no other terms. Is this K valid?

Bob and Amy are merchants. Bob offers to sell Amy 12 Yo-Yo's for $50. Amy says she agrees, but she wants $55. This is:

Bob is purchasing a hairdryer from a store. This contract will be governed by:

Bob offers to sell Amy 10 YoYo's, and offers no other terms. Amy agrees. Is this K valid?

Bob buys a ticket to Seaworld. This K is governed by:

Bob agrees to supply Amy all the Yo-Yo's that she needs for her business. This is a(n):

Bob offers to sell 200 Yo-yo's for $550 to Amy. Amy Agrees. Is this K enforceable?

Bob owns a used car company. Bob sends an email offering you a car for $500 until Friday. Can he revoke it before Friday

Bob is moving into a home and paid $1400 for furniture and $300 for moving services. This K is governed by: