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Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities