Answer:
3x^2 + 6x + 10
Step-by-step explanation:
Because we're adding it, it doesn't matter if we just take out the parenthesis.
X^2 + 2x^2 gives us 3x^2.
6x stays the same.
-5 + 15 gives us 10.
3x^2 + 6x + 10
The cost of the iPad sold on eBay is $537.7
The mark up percentage is given by:
Mark up = [(selling price - cost price)/cost price] * 100%
Given that selling price = $699, mark up = 30%= 0.3. Let x represent the cost price, hence:
Mark up = [(selling price - cost price)/cost price] * 100%
0.3 = (699-x)/x
0.3x = 699 - x
1.3x = 699
x = $537.7
Therefore the cost of the iPad sold on eBay is $537.7
Find out more at: brainly.com/question/20548779