Answer:
it should still be 166
Step-by-step explanation:
because bfa should be the same as bda
that's what i learnt about this
but i did this a long time ago so im about 70 percent sure that this is correct
 
        
             
        
        
        
Answer:
1 skateboard will cost $73 and the other will cost $72
Step-by-step explanation:
Skateboard A (Original) = X
Skateboard B (+$1) = X + 1
Solving for X
(x + 1) + x = 145
2x + 1 - 1 = 145 - 1
2x = 144
2/2 = x  
144/2 = 72
x = 72
 
        
             
        
        
        
Answer:
A
Step-by-step explanation:
35 + 40 + 50 = 125
35/125 = 0.28
 
        
                    
             
        
        
        
Answer:
an=9+(n−1)3, an=3n+6
Step-by-step explanation:
Arithmetic Sequence: 
d=3
This is the formula of an arithmetic sequence.
an=a1+d(n−1)
 Step 1: Substitute in the values of 
a1=9 and d=3.
an=9+(3)(n−1)
Step 2: Simplify each term.
an=9+3n−3
Step 3: Subtract 3 from 9.
an=3n+6
 
        
             
        
        
        
Answer:
x=16
Step-by-step explanation:
Pythagorean theorem:
20^2-12^2=256
square root of 256=16