Answer: A>7
Step-by-step explanation:
adjacent, and complementary
y = -x + 1/3
+ x + x
--------------------------
x + y = 1/3
r + 4(r - 3)
<em><u>We'll use the distributive property to simplify this.</u></em>
r^2 - 3r + 4r - 12
<u><em>Combine like terms</em></u>
r^2 + r - 12 is the simplified form.
