Henry and Jacob have been friends for many years and decide to go into business together. Henry is 25 years old and Jacob has just turned 17 years old two weeks ago. They have now saved up enough money to purchase a Macbook from Simon, their mutual friend, to start their graphic design business. Henry and Jacob approach you for advice on the following: 

1.2 Advise Jacob on his capacity to enter into a sale agreement with Henry and Simon. (20)