Four different positive integers have a mean (average) of 100. If the positive difference between the smallest and largest of these integers is as large as possible, determine the average of the other two integers.

Sarah is collecting recyclables for a science project. on the first day she collected 35 recyclable objects. on the second day she had a total of 52 recyclables. on the third day she had a total of 69 recyclables. determine if the scenario describes an arithmetic or a geometric sequence. then, write the recursive formula for the sequence described.