Y-8=13
y=13+8
y=21
Hope this helps!
Answer:
The solution for this system is: 
Step-by-step explanation:
The problem states that we have to solve this system by the elimination method
In the elimination method, we transform the system in such a way that one variable can cancel each other. With this, we find the result of the other variable. Then, we can replace the variable we found in any of the equations, and we have the value of the variable that we had initially canceled.
In this problem, we have the following system:


If we add equations 1) and 2), the variable x is going to be eliminated





Now, we can replace the value of y in any of the equations, to find x:
I will replace in equation 2)





The solution for this system is: 
we are given
The scale is

the distance from Happy Hill Park to Rainbow Valley Park is 4 1/2 inches
we can change it into rational form
and we get

so, we can multiply both sides by 9

now, we can simplify it

so, the actual distance between the two parks is 27 miles........Answer
Answer:
Complex and imaginary number
Step-by-step explanation:
First, let's write the number
in the form of
.

Since
can be written in the form of
, where
and
are real numbers, it is a complex number.
Also, since
, it is also an imaginary number.
is complex and imaginary.
Answer:
6b
Step-by-step explanation:
|-b| = b
b+5b= 6b