Answer:

Step-by-step explanation:
Given


Required
Determine the final price
First, we need to determine the sales price after the discount.






Next, is to determine the sales tax.



Final Price, y is then calculated as thus:



Answer:
y = -4x
Step-by-step explanation:
Since it gives you that m = -4 and that the y-intercept is at (0, 0), we simply plug it into y = mx + b
y = -4x + 0
y = -4x
Answer:
1/4 or 0.25
Step-by-step explanation:
9-8=1
1/4
4/9(2n)+4/9(-3)
(4x2/9)n+(4 x -3)/9
(8/9)n -12/9
8/9n-4/3