Answer:
1. $67.72
2. It's correct.
Step-by-step explanation:
1.
bill: $68.89
discount: $10
tip: 15%
Calculate the total with the discount.
68.89-10=58.89
Now calculate 15% of that.
Convert 15% to decimal by dividing by 100

Multiply

Add this to the original amount.

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Calculate 20% of 148.25
Convert 20% to decimals by dividing by 100

Multiply
 This is how much they will tip.
 This is how much they will tip.
Add this to the original bill;

 
        
             
        
        
        
Answer:
D. 
Step-by-step explanation:
y-intercept is (0, 3)
x-intercept is (4.5, 0)
formula to find the slope from two points is

then the slope of the line that crosses (0, 3) & (4.5, 0) is

 
        
                    
             
        
        
        
Answer:
You would have to do long division if you are not able to use a calculator.