$105,882.35
18,000/? = 17/100
18,000/17 = 1,058.82 (+additional decimal places I didn’t include)
1,058.82 x 100 = 105,882.35
a. The first variable is x and the second variable is y.
b. The equations are
and 
Step-by-step explanation:
Step 1:
The first step is to define the variables. The variables can be any two symbols, letters, characters, etc.
Here let the first variable be x and the let the second variable be y.
So the variables are defined as x and y.
Step 2:
The sum of the given variables is 12.
The first variable + the second variable = 12,

The difference between the two variables is 4.
The first variable - the second variable = 4.

Step 3:
If we add both the equations we get,
and 
x = 8 and y = 4.
Answer:
?
Step-by-step explanation:
4(x-y)^4
4((-2)-(-4))^4
4((-2)+4)^4
4(2)^4
4(256)
THE ANSWER IS 512
Answer:
144°
Step-by-step explanation:
The angles of a decagon add up to 1440°
1440/10=144