16. Joe met Larry on the main street of their town. Both owned used car lots in the town, and were casual acquaintances. Parked at the curb beside them was a vintage muscle-car Joe had long admired. Pointing to it, Joe said "I love that beauty. I'd pay $40,000 in a heartbeat for that one." "Yeah?" said Larry, "Well, I accept your offer. That's a $5,000 profit for me. I bought it this morning for $35,000. It's yours now, buddy." Joe protested that he had not been serious about the ca hold him to his word. Advise the parties