Answer:
B. 
Step-by-step explanation:
The right triangle altitude theorem states that the altitude of a right angled triangles formed on the hypotenuse is equal to the geometric mean of the 2 line segments it creates.
This can be represented as:

Where,
h = the length of the altitude,
x and y are the lengths of the 2 segments formed.
Therefore, the length of the altitude = 



The graph is shown in the attached image.
Answer:
D
Step-by-step explanation:
If he got the jeans for 40% off he paid 60% of the cost for the jeans. With that you can setup an equation.
20 is 60% of what number
is signifies equals and of signifies multiplication
20 = 0.6*x
x = 20/.6
x = 33.33
The regular price of the jeans is $33.33