Answer:
a.) 
Step-by-step explanation:

Find two numbers that add up to -6 and multiply to -40 (you will most likely need a negative and a positive because -40):
-10 and 4
Factor:

Finito.
Answer:
The first thing that we need to do is subtract 4.5 from both sides because that would removed the 4.5 from the left side and leave us with m by itself. So we get the following
and that is our solution.
<u><em>Hope this helps! Let me know if you have any questions</em></u>
You'd do $500 x 0.15 to which gives you 75$ in tax. $500 + $75 = $575 selling price
Answer:
they give us a sense of where a score falls in relation to the mean of its population (in terms of standard deviation of its population), 2) they allow us to compare scores from different distributions, and 3) they can be transformed into percentiles.
Step-by-step explanation:
The answer to this question is -21