Answer:

Step-by-step explanation:
You are given the relation 
This means that

The input values of this relation are
, so the domain of this relation is 
The output values of this relation are
, so the range of this relation is 
Length= 28
Width= 14
Work:
2(2x)+2(x)=84
4x+2x=84
6x=84
x=14
14x2=28 (length)
Answer:
5 nickles in a quator.
Step-by-step explanation:
(x+y-3)(x+y+3) = x^2+xy+3x+xy+y^2+3y-3x-3y-9 = -9+x^2+y^2+2xy
Answer:
60 centimeters by 20 centimeters
Step-by-step explanation:
5 X 20 = 100 5 X 60 = 300