Given: x + y = 6.

if x {-15, -6, -1}, then which of the following sets of ordered pairs are solutions?

{(-15, -21), (-6, -12), (-1, -7)}
{(-15, 21), (-6, 12), (-1, 7)}
{(-15, 21), (-6, 12), (-1, -7)}

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?