If one person takes up 2.5 square feet, estimate the size of a crowd of a parade section that is 1mile long and 7 feet deep. Calculate the crowd estimate for both sides of the street.

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one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.

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its payment history because your score is mainly based on how consistent u are with your payment and if there on time. hope this : )