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Twenty-five percent of the customers entering a grocery store between 5 p. m. and 7 p. m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Consider the graph of the exponential function y=3(2)×