Sarah lost 12 pounds over the summer by jogging each week. by winter time, she had gained 4 3/8 pounds. represent this situation with an expression involving signed numbers. what is the overall change in sara's weight.

3. solve by graphing: y = 2x + 6 x + y = -3

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.