"all parallelograms have two pairs of parallel sides. all rectangles are parallelograms with four right angles. all squares are rectangles with four congruent sides." part a. do all squares have four right angles? use the statements from above to you explain your answer. part b do all squares have two pairs of parallel sides? use the statements from above to you explain your answer.

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.