Mr. kaufman has to mail out 5 large envelopes of important papers. each envelope needs 4 stamps. how many stamps will he need in all? a)1 b)20 c)25 d)10

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

Which function has the domain x> -11