Answer:
$90
Step-by-step explanation:
To find out how much money he can save by paying the total amount at the time of purchase, first you have to determine the total amount that Jackson would pay if he can agree to pay $250 down and $130 a month for 18 months:
$250+(130*18)=$2590
Then, you need to find the difference:
$2590-$2500=$90
According to this, the answer is that you will save $90 by paying the total amount at the time of purchase.
<span>
<u><em>The correct answer is:</em></u>16%.
<u><em>Explanation</em></u><span>
<u><em>: </em></u>We use a z-score to answer this question.
<u>The formula for a z-score is:</u>
z=</span></span>

<span><span>,
where mue is the mean and sigma is the standard deviation.
<u>Using our information, we have:</u>
z=</span></span>

<span><span>.
Using a z-table, we see that the area to the left of, or less than, this score is 0.8413. We want to know how many students scored more than this, so we subtract from 1:
1-0.8413=0.1587, which rounds to 16%.</span></span>
Answer:
D
Step-by-step explanation:
I graphed each equation on a piece of paper and on desmos.com