Answer:

Step-by-step explanation:
A line in 2-dimensional space has the following general equation:

Where m is the slope of the line, and b just a number
the slope can be obtaine using th following formula:

The point 2 is the one with the smallest value for x, that is (-10,-7) and the Point 1 is any other that belongs to the line, in this case, (-5,-9)

Resulting that 
To find the other term we can use any other point, I prefer us the first one so...
We have the following equation:

Resulting that b=18
I just have to eval the point (-10,-7) in the equation stated at the beginning knowin that m was calculated previously.
The answer to this would have to be the number 15 my good sir
3 CD → $29.98
29.98 - 6.44 = 23.54 → remained
If each CD costs the same amount ... ↓
23.54 ÷ 3 = 7.8466
$7.8466
Answer:
tan65°
Step-by-step explanation: