The price demand equation for hamburgers at a fast food restaurant is given by the following equation: x+400p=3500. currently the price of a hamburger is $4.50. if the price is increased by 20%, how will the revenue be affected? will it increase, decrease, become equal to zero, or stay the same?

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.