Answer: -3
Step-by-step explanation:
y2-y1/x2-x1
(1,0)
(0,3)
3-0/0-1 = -3/1
 
        
             
        
        
        
2 x 3.99 = 7.98
3 x 4.49 = 13.47
1 x 4.99 = 4.99
Total:  26.44
50.00 - 26.44 = 23.56
        
                    
             
        
        
        
Earlier price is 2.80
Current price is 2.87
Increment is 
2.87 - 2.80
0.07
Increment percentage is
(0.07 / 2.80) * 100
2.5 %
        
             
        
        
        
the answer willllll be 6 units 
 
        
             
        
        
        
<h3>Answer:</h3>
y = 0.1x +1500
<h3>Explanation:</h3>
You need an equation that will give Gary a salary of $1500 even if he makes no sales (x=0). The only possible choice for the second item is then ...
... +1500
You are expected to know that Gary's commission of 10% of sales is computed by multiplying sales (x) by 10%. That is, if Gary sells $100 worth of items, his commission is ...
... 10% × $100 = $10
That is, the multiplier is 0.1.
Gary's salary (y) is then computed as
... y = 0.1x +1500
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<em>Comment on percentages</em>
The % symbol is a shorthand way to write /100. That is, 10% = 10/100, ten hundredths, or 0.10. (You might notice here that "percent" and "hundredths" can be used interchangeably.)