Answer:
Part A: To create an expression to represent the amount of canned food collected so far by the three friends, we need to add up their individual contributions. Therefore, the expression would be:
Amount collected = (3x² - 2) + (x²) + (2xy + 5)
Amount collected = 4x² + 2xy + 3
Part B: To find the expression that represents the number of cans the friends still need to collect to meet their goal, we need to subtract the amount collected from their goal expression. Therefore, the expression would be:
Cans still needed = 6x² - 2xy + 8 - (4x² + 2xy + 3)
Cans still needed = 2x² + 5
Answer: We do not have enough information to provide an answer for Part C as we need to know the value of x to evaluate the expression 6.02.