For what value of y must LMNP be a​ parallelogram?

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.