C
The word “increased” means to add, so C would be the correct answer. Hope this helps!
Answer:
-21
Step-by-step explanation:
In the term -21xy, -21 is the coefficient. It comes before the variables that are x and y.
All real numbers! All domains of monomials are all real numbers
Think of two lines BE and AD that intersect at C and makes triangles BAC and EDC since angles BCA and ECD are equal by opposite angle thereom. and given BC=EC, CA=CD there the triangles are equal and side BA=ED
