What is the perimeter and the area of the rectangle abcd with vertices a(3,5) b(3,8) c(8,8) and d(8,5)?

What is (28 + 7 + 6 + 3) x 1/2 show your work

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

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.