Find positive numbers x and y satisfying the equation xy 4

1 +3 = 4

2+2=4

 x can be 0, 1 , 2 , 3 or 4

 y can be 0, 1 , 2 , 3 or 4

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.