Calculate the mass percent of each element in a compound. 1.Methane, CH4(C=12.01 g/mol; H=1.008 g/mol)

2.Sodium Nitrate, NaNO3(Na=23.0 g/mol; N=14.0 g/ mol; O = 16.0 g/mol)

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Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?