ricardo is 17 years old. he signs a written contract with joe. under the terms of the contract, joe sells ricardo a car and a motorcycle. ricardo pays joe $1,000 down and is required to pay $500 a month for 12 months. after 3 months, ricardo turns 18 and tells joe that he wants to void the contract for the purchase of the car. ricardo wants to keep the motorcycle. can ricardo void the contract under those terms?