Three friends, Jessa, Tyree, and Ben, are collecting canned food for a culinary skills class. Their canned food collection goal is represented by the equation 12ײ-2×y 3. The friends have already collected the following number of cans: Jessa: 3ײ Tyree:5ײ-8 Ben:2×y 4 Part A: Write an equation to represent the amount of canned food collected so far by the three friends. Part B: Write an expression that represents the number of cans the friends still need to collect to meet their goal.