The Gender Gap The following graph shows the ratio of women’s earnings to men’s from 1960 through 2000. Write the rule for the function  giving the ratio of women’s earnings to men’s in year , with  corresponding to 1960. Hint: The function  is defined piecewise and is linear over each of four subintervals. In what decade(s) was the gender gap expanding? Shrinking? Refer to part (b). How fast was the gender gap expanding or shrinking in each of these decades?

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.