Answer:
I don't know if i'm right but I think it's b.
Step-by-step explanation:
I am so sorry if I am wrong.
Answer:

Step-by-step explanation:
From the question we are told that:
Cost Price 
Sale Price 
Generally the equation for Profit P is mathematically given by



Therefore as a percentage
Percentage Profit X is given as


Answer:
the answers for those are number 4 is 150 and 5 is 16%
Step-by-step explanation:
number 4 500 x 30= 15,000
15,000 ÷ 100= 150
number 5 80 x 100=8,000
8,000÷ 500= 16 so 16%
The derivative of x^3 is 3x^2.... is that what you were looking for?
you can compare the length of sides of both the triangles...