Answer:

Step-by-step explanation:

Add
to both sides

Divide both sides by 11

Domain={8,9}
Range = { -3,-4,-6,-9}
No relation is not function as elements in domain are related to more than one element of codomain
Answer:
∆pkl and ∆nkl
Step-by-step explanation:
Supplementary angles are two angles whose measures add up to 180° . The two angles of a linear pair , like ∠pkl and ∠nkl in the figure above, are always supplementary.
All the rectangle are square if length becomes equal to breath !
I think they are not always the best deal, but most are. Sometimes they are not good if they opponent has a even lower price then them.