Well first you substitute -3 for y and then subtract 12 from both sides of the equation and it should look like -15=-3x. Then divide 3 on both sides and you should end up getting 5=x.
360 ÷ 12 = 30.
The measure of an interior angle of a dodecagon is 30°. (:
Answer:
-1/4
Step-by-step explanation:
please mark brainliest
False because you walk both the sides so you would have to do 360x2 added to 160x2
