At Queen Elizabeth Public School, four of every ten people prefer chocolate ice cream, and the rest prefer vanilla ice cream. (a) If 350 people plan to attend a school barbecue, how many will eat chocolate ice cream? (b) If each person will eat 250 grams of ice cream, how much chocolate ice cream should be purchased? All solutions must be submitted by noon on Wednesday, May 1. Please explain your reasoning. Answer only will not be eligible for the draw.