19y-9 is a simpler form of this expression. You can use distributive property to get rigid the brackets (multiply -3 by -4y and 3) , then your expression looks like 12y-9+7y. You then combine like terms to get 19y-9.
44
i think so at least it should be
Answer:
8 sides
Step-by-step explanation:
exterior angle + interior angle = 180° , that is
exterior angle + 135° = 180° ( subtract 135° from both sides )
exterior angle = 45°
the sum of the exterior angles of a polygon = 360°
since the polygon is regular then number of sides n is
n = 360° ÷ 45÷ = 8
Answer:
ok post the question
Step-by-step explanation:
