If line segment AB is perpendicular to line segment CD, determine the value of y in the ordered pair for point D. A(6,-1) B (-3, -7)
C(9, 14) D(-10, y)

What numbers are included in the set of integers? what numbers are not included?

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Astore has clearance items that have been marked down by 60%. they are having a sale, advertising an additional 55% off clearance items. what percent of the original price do you end up paying?