Evaluate :
(x+y)(x -y), if x = -3, y = -5

Which system of linear inequalities is graphed? can somebody pleasssse

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

Give me the equations of two lines that have the same slope but are not parallel.