The mean of 31,29,33,37,43,38,33,40

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

What ia the sum if the first 7 terms of the geometric series