Spicoli wants to start a surfboard company. He offers to buy $20$ surfboard blanks for $$100$ each from ABC surfboard manufacturing company and says the boards must be delivered in $30$ days. That gives Spicoli enough time to shape the boards in time for the upcoming winter swell. ABC surfboard companys representative says Yeah dude, we can do that. Is there a valid contract, and if so$,$ why? If not, why not?