I need to Write an expression using fractions to show how to determine the amount that each person will pay. Then calculate each person's contributions showing all steps in long division. And If each person paid an equal amount, who would save the most money? Explain your reasoning using at least two complete sentences.

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Aculture started with 3000 bacteria. after 5 hours it grew to 3900 bacteria. predict how many bacteria will be present after 9 hours

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field