Find the value of the expression for the given values of the variables. a – 6, when a = –7

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c

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Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.