Answer:
$60
Step-by-step explanation:
The sale comes after the markdown.
let’s set an equation:
x - 20 = 40
x= 60
$60
y/3 = h
Multiply both sides by 3:
y = 3h
(5,9) because vertex form is (x-h)^2+k and the vertex is (h,k) so it would be (5,9)
Since there’s a 10 multiple both sides by 10 and it gives you 20/100 which is 20%
Answer
(3,1)
Explanation
(6,2) is the same as (3,1) because the x value and y value are proportional, meaning you multiplied or divided both the x value and y value by the same number.
6 divided by 2 is 3.
2 divided by 2 is 1.
(1,3) doesn't work because the x value and y value are switched.
6 divided by 6 is 1.
2 divided by 6 is not 3.
(8,12) doesn't work because the x value and y value are switched... and it wouldn't work anyways.
6 divided by 3/4 is 8.
2 divided by 3/4 is not 2.
(12,8) doesn't work because the x value and y value aren't proportional.
12 divided by 2 is 6.
8 divided by 2 is not 6.
Therefore only (3,1) could be another ratio to (6,2).
