Is the length of a rectangle the perimeter?

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Which of the following statement about pascal's triangle are true?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?