Answer:

Step-by-step explanation:
Fixed monthly fee = $20
Amount charged per minute for long distance calls = $0.20
denotes total cost such that
minutes are used for long distance calls.
Amount charged for
minutes for long distance calls 
Therefore, an equation for the total cost, C, when N minutes are used for long distance calls is 
Answer: $24
Step-by-step explanation:
Answer:
The circle's diameter is 
Step-by-step explanation:
we know that
The circumference of a circle is equal to

where
D is the diameter of the circle
In this problem we have


substitute the values and solve for D


X^2+ox-36=(x-6)(x+6)
x^2+0x-36=0
Answer:
A, C, and D.
Step-by-step explanation:
<XYZ appears in the diagram as the vertex angle Y, has two sides, YW and YX that intersect at point Y to form <XYZ.
Thus, <XYZ, line segments YW and YX all appear in the diagram given.
<YXZ does not appear because there's no vertex angle labelled X.