Answer: Angles are supplementary if and only if their sum is 180° is true.
Step-by-step explanation:
Test by making both parts negative: Angles are not supplementary if and only if their sum is not 180° This is also true.
Answer:
11
Step-by-step explanation:
11+5=16
16 x 6=96
(2,1) is the solution because its where they both intersect..
I believe it would be 12/18 so that would be 2/3 and 0.6 in decimal form
