A. -3x+5+7-4x 
  -3x-4x+5+7 
-7x+12 
-7x+12-5x+17 
-7x-5x+12+17
-12x+29
B. -5*(x+2)= -5x-10
-6x-1+ (-5x-10)= -6x-5x-1-10=
  -11x-11
        
             
        
        
        
Answer:
16
Step-by-step explanation:
(x-8)^2 + (y-4)^2= 16
 
        
             
        
        
        
The measure of each exterior angle is 60° and the polygon has 6 sides ⇒ 4th answer
Step-by-step explanation:
In a regular n-side polygon:
- All sides are equal in lengths
- All angles are equal in measure
- The measure of each interior angle =  
- The measure of each exterior angle =  
- The sum of interior angle and exterior angle at a vertex is 180°
∵ The measure of an interior angle of a regular polygon is 120°
∵ The sum of interior angle and exterior angle at a vertex = 180°
∴ The measure of each exterior angle = 180 - 120
∴ The measure of each exterior angle = 60°
∵ The measure of each exterior angle = 
- Substitute the measure of the exterior angle by 60
∴ 
- By using cross multiplication
∴ 60 n = 360
- Divide both sides by 60
∴ n = 6
∴ The polygon has 6 sides
The measure of each exterior angle is 60° and the polygon has 6 sides
Learn more:
You can learn more about polygons in brainly.com/question/6281564
#LearnwithBrainly
 
        
             
        
        
        
Answer:
what is the ratio of green to red m&ms
4:5 
what is the ratio of green m&ms to the total number m&ms
4:12
if correct brainly
 
        
                    
             
        
        
        
Answer:
Total area = 98.26 ft²
I didn't do the math for this, credit goes to: https://brainly.in/question/16592416