It cost $5 for his brother's ticket.
Step-by-step explanation:
Let, 
Micheal's ticket price= x
His brother ticket price = y
According to given statement; 
x+y=12    Eqn 1
y = x-2    Eqn 2
Putting value of y from Eqn 2 in Eqn 1

Dividing both sides by 2;

Putting x=7 in Eqn 2

It cost $5 for his brother's ticket.
Keywords: linear equation, substitution method
Learn more about linear equations at:
#LearnwithBrainly
 
        
             
        
        
        
Answer:
Triangle 1 line segment AB and triangle 2 line segment BA correspond to each other 
Step-by-step explanation:
Point b and point a don't correspond to anything else 
triangle 1 and 2 are congruent my answer would be a 50/50 guess between C and D If it were me id risk it and go D but it is up to you.
 
        
             
        
        
        
Answer:
Hi,
Step-by-step explanation:
We can't solve that but reduce it to the same denominator.

 
        
             
        
        
        
Answer:
27 units²
Step-by-step explanation:
Cut the figure into a 8 by 3 rectangle and triangle.
The area of the rectangle is 8*3 or 24 
The area of the triangle is 3 using the formula 1/2bh where the base and height are 3.
Adding those 2 areas together 24+3 will equal 27
 
        
             
        
        
        
To find the interior of Y
Y = 180 - 135
Y = 45 
The interior of Z is 49 because the angles are mirrored to each other
then, to find x, 
X = 180 - 45 - 49
X = 86
so your answer should be 86.