A quick way to answer all 1-10 is to multiply the starting price by 1.##. So for number 1 the equation would be 18 x 1.07 which equals $19.26. Question 2 would be 
14 x 1.20 which equals $16.80. I think you got it from here.
        
             
        
        
        
The points for C is (12, 10.5)
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
A function has at most one y value for every x value. This means that for every vertical line, there can be at most one intersection.
This example clearly doesn't satisfy this requirement.
 
        
             
        
        
        
Answer:
slope (m) =	0.75
Step-by-step explanation:
Slope (m) =	
ΔY
ΔX
=	
1
3
=	0.33333333333333
θ =	
arctan(	ΔY	) + 180°
ΔX
=	198.43494882292°
ΔX = -4 – 2 = -6
ΔY = 3 – 5 = -2
Distance (d) = √ΔX2 + ΔY2 = √40 = 6.3245553203368
Equation of the line:
y = 0.33333333333333x + 4.3333333333333
or
y =  
1	x
3
 +  13
3
When x=0, y = 4.3333333333333
When y=0, x = -13
please mark brainliest
 
        
                    
             
        
        
        
Answer:
Zero is a number that can be equal to its opposite.
So, the given equation has solution for which LHS=RHS=0.
Step-by-step explanation:
The answer to the equation is 2