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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.

He concluded that a heavier object dropped from the same height as a lighter object will land

Solve 3x-18=2y and 5x-6y=6 by elimination show work