Use substitution to solve the system of equations. y = −2x x − 3y = 21 a) (3, −6) b) (3, 4) c) (−2, −6) d) (−6, 12)

Which of these triangle pairs can be mapped to each other using two reflections?

Acircle has a circumference of 28.36 units what is the diameter of the circle

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition