One of the most common ways to find the slope is to
put the problem in standard, slope-intercept form, which is
y=mx+b. The easiest way to describe this process is to isolate y.
Here's how you do it for this problem:

Since
m is your slope, the answer would be
-3/8.
Hope this helps!
$47.60 ends up being the sale price. Now subtract Or. price $68 and sale price $47.60 wich ends being the difference and is your answer $20.40
Note that (-6)^2 = (-6)(-6)
Multiply across. Remember that when multiplying two negative numbers, the product would be a positive answer
(-6) x (-6) = 36
36 is your answer
~<em>Rise Above the Ordinary, Senpai</em>
Step 1) Distribute everything in parentheses
<em>4</em><em>5</em><em>m</em><em>+</em><em>9</em><em>0</em><em>0</em><em> </em><em>=</em><em> </em><em>9</em><em>0</em><em>m</em>
Step 2) Subtract <em>4</em><em>5</em><em>m</em><em> </em>from both sides
<em>9</em><em>0</em><em>0</em><em> </em><em>=</em><em> </em><em>4</em><em>5</em><em>m</em>
Step 3) Divide
Answer: 20