Let's rewrite the information then figure out the answer.
DVD: $9.00 originally but on sale with an 80% discount.
80%=0.80
9.00(0.80) = $7.20
$9.00 - $7.20 = $1.80
Thus, the sales price is: $1.80
Answer:
3. ![\displaystyle x-intercept: [-4\frac{1}{2}, 0] \\ y-intercept: [0, -9] \\ Slope-Intercept\:Form: y = -2x - 9](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x-intercept%3A%20%5B-4%5Cfrac%7B1%7D%7B2%7D%2C%200%5D%20%5C%5C%20y-intercept%3A%20%5B0%2C%20-9%5D%20%5C%5C%20Slope-Intercept%5C%3AForm%3A%20y%20%3D%20-2x%20-%209)
2. ![\displaystyle x-intercept: [5, 0] \\ y-intercept: [0, 1] \\ Slope-Intercept\:Form: y = -\frac{1}{5}x + 1](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x-intercept%3A%20%5B5%2C%200%5D%20%5C%5C%20y-intercept%3A%20%5B0%2C%201%5D%20%5C%5C%20Slope-Intercept%5C%3AForm%3A%20y%20%3D%20-%5Cfrac%7B1%7D%7B5%7Dx%20%2B%201)
1. ![\displaystyle x-intercept: [4, 0] \\ y-intercept: [0, -3] \\ Slope-Intercept\:Form: y = \frac{3}{4}x - 3](https://tex.z-dn.net/?f=%5Cdisplaystyle%20x-intercept%3A%20%5B4%2C%200%5D%20%5C%5C%20y-intercept%3A%20%5B0%2C%20-3%5D%20%5C%5C%20Slope-Intercept%5C%3AForm%3A%20y%20%3D%20%5Cfrac%7B3%7D%7B4%7Dx%20-%203)
Step-by-step explanation:
−2x - y = 9
x-intercept → Plug in 0 for <em>y</em><em> </em>to get −4½ for <em>x</em>
y-intercept → Plug in 0 for <em>x</em><em> </em>to get −9 for <em>y</em>
−2x - y = 9
+ 2x + 2x
_________

<em>Slope-Intercept</em><em> </em><em>Form</em>
_______________________________________________
x + 5y = 5
x-intercept → Plug in 0 for y to get 5 for x
y-intercept → Plug in 0 for x to get 1 for y
x + 5y = 5
- x - x
_________

<em>Slope-Intercept Form</em>
_______________________________________________
3x - 4y = 12
x-intercept → Plug in 0 for y to get 4 for x
y-intercept → Plug in 0 for x to get −3 for y
3x - 4y = 12
- 3x - 3x
_________

<em>Slope-Intercept Form</em>
I am joyous to assist you anytime.
The answer is B, picture shows how to solve it although the answer is written slightly different
10 times
"The value of the digit in the hundredths place is 10 times as much as the value of the digit in the tenths place."