The points (4, -6) and (r, 6) lie on a line with slope 3. Find the missing coordinate r.

To show that polygon abcde is congruent to polygon fghij, a must be used to make the two polygons coincide. a sequence of two transformations that can be used to show that polygon abcde is congruent to polygon fghij is .

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?