Answer:
$62.50
Step-by-step explanation:
The original price is x
It is marked up 40 percent
x+.40x = new price
1.40x = new price
The new price is 87.50
1.40x = 87.50
Divide each side by 1.40
1.40x/1.40 = 87.50/1.40
x =62.50
The price before mark up is 62.50
Y = mx + b
y = -4x -2
trying option 1
-8x + 2y = -4
2y = -4 + 8x
y = -2 + 4x
so its incorrect
Now trying option 2
8x + 2y = -4
2y = -4 - 8x
y = -2 - 4x
y = -4x -2
so Option B is correct
Answer:
10, 26, 74, 218, 650
Step-by-step explanation:
n * 3 - 4