What Is A Function

Find the sum of the following geometric series: 100 + 25 + 6.25 + … . Find the common difference for the arithmetic sequence having and . Fill in the missing terms in the following arithmetic sequence: 3, __, __, __, 81. Fill in the missing terms in the following geometric sequence: 3, __, __, __, 81. Look for a pattern in this sequence and write a recursive definition of the sequence. 2, 6 ... ................
................