Step-by-step explanation:
Sale price
= Marked down by 10% from selling price
= 90% of selling price
= 0.9 * $600
= $540.
Sale price - Cost price
= $540 - $450 = $90.
The markup from cost to sale is $90.
It's the points of the triangle E----------G
They are the twin points
Answer:
.78 x = 42
x = 42 / .78
The number is 53.8461538462
Step-by-step explanation:
