Answer:
w<10
number -  A
 (<) means "open circle to the left."
 
        
             
        
        
        
Answer:
1.) 8 = 8
2.) -12 = -12
3.) -3y² = -3y²
4.) 6x² + 36x = 6x(x + 6)
5.) 7x - 14x² = 7x(1 - 2x)
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Answer:
Step-by-step explanation:
Perimeter of a triangle equals side 1 plus side 2 plus side 2
            P = s1 + s2 + s3                 side 1 = side 2 =  x
                                                      x/side 3 = 5 / 3
                                                      x  = (5/3) side 3
                                                      x (3/5)  = side 3
                                                   
                                                      perimeter = 65    slove for x
           65  = x + x + 3x/5
          325  = 5x + 5x + 3x
          325  = 13X
           25   = x    equal side 1 and side 2   
           side 3 = 25(3/5)  = 15 
 
        
             
        
        
        
 Let S = spoon
Let K = knife
 1 knife is thee times the cost of a spoon, so it would be 3S
Now you have 9S + 12K = 82.80
 We can replace the K with 3S:
9S +12(3S) = 82.80
Simplify the left side:
9S + 36S = 82.80
Add:
45S = 82.80
Divide both sides by 45"
S = 82.80 / 45
S = 1.84
One spoon cost $1.84
 We know one knife cost 3 times as much, so multiply the cost of a spoon by 3:
 Knife = 1.84 x 3 = $5.52
 
        
                    
             
        
        
        
The 3rd answer, is correct.