Answer:
54/3-7=11
Step-by-step explanation:
x/3<u>-7=11</u>
    +7 +7
(3)x/3=18(3)
      x=54
Check
54/3-7=11
18-7=11
11=11 
 
        
             
        
        
        
Answer:
1. Markup: $2.70, Retail: $20.70
2. Markup: $9.45, Retail: $31.95
3. Markup: $25.31, Retail: $59.00
4. Markup: $24.75, Retail: $99.74
5. Markup: $48.60, Retail: $97.20
6. Markup: $231.25, Retail: $416.25
Step-by-step explanation:
To get the markup price of an item, multiply it by the markup percentage as a decimal. To get the decimal of a percentage, divide the number by 100. For example, 15% would be 0.15. And then to find how much the item has been marked up by, multiply the current price by the decimal.
$18 * 0.15 = $2.70
So $2.70 is the markup. To find the retail price, you need to add the markup price to the current price given. 
$18 + $2.70 = $20.70
So your retail price is $20.70. Repeat these steps for each question to get the answers above.
Hope this helps.
 
        
             
        
        
        
Answer: B.x(0.75)
Step-by-step explanation:
If the jacket has a cost of  , but has
, but has  off and we have to add the
 off and we have to add the  in tax, we can write all in the following expression:
 in tax, we can write all in the following expression:

Where:
 is the cost
 is the cost
 is the percent off
 is the percent off
 is the tax
 is the tax
Then:

This can be also rewritten as:
 
 
Hence, the correct option is B.
 
        
             
        
        
        
I don't know if this is just my phone, but the picture won't load. 
You could try posting a new picture? Or feel free to message me with the picture and I'll be glad to help! :)
        
                    
             
        
        
        
Rearrange x²+y²-4x+6y=-11 I'll tell you an easy way. take the coefficient of x and divide it by -2 and the coefficient of y and divide it by -2  so -4 ÷-2 = 2           6÷-2= -3 (2,-3) is the center of the circle to know the radius √2² + -3² + -11  =√2  The Radius equals √2