Instead of using an = sign we use 

 becuase its less than or equal to 100 dollars.
The equation of the line is y=10x+7
sub in 100 for y and the inequallity sign
10x+7

100
solve so x is isolated
10x

93
x

9.3
technically the answer is 9 because you cant buy a fraction of a CD
 
        
        
        
Explanation + answers
Because there are lengths going from 0 to 1, the lines must mean either decimals or fractions (we'll use fractions for this.)
1. There are twelve lines from 0 and 1, which we can use as the denominator for our fraction. This means the length of each line is 1/12.
 
2. In order to find where K's point is at, we simply need to count until we get to it. After counting, I see that K is on point 8/12, which we can simplify to get a smaller number. If we simplify once, we get 4/6, which we can again simplify to get 2/3. This gives us the answer K is on point 8/12 or 2/3.
 
        
             
        
        
        
Answer:
Option B. 
Step-by-step explanation:
we know that
A non-terminating, non-repeating decimal is a decimal number that continues endlessly, with no group of digits repeating endlessly
example 
the number 
In this problem
the number  is a non-terminating, non-repeating decimal
 is a non-terminating, non-repeating decimal 
 
        
             
        
        
        
Answer:
7875 square inches 
Step-by-step explanation:
4ft^2 = 2ft * 2ft
4ft^2 = 3in * 3in
4ft^2 = 9in^2
For 3,500 square foot 
3,500 square foot  = x
Divide bith expressions
4/3500 = 9/x
4x = 9 * 3500
4x = 31500
x = 31500/4
x = 7875 square inches 
Hence the area of the house in inches is 7875 square inches