When a number is divided by 5, it has a remainder of 4. The number is between 35 and 40.
What is the number?

37

Step-by-step explanation:

I plugged in the numbers between 35 and 40 and got this. No problem. :)

what "following statement"?

step-by-step explanation:

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.