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:
The answer is B
Step-by-step explanation:
I took the test
$x=3$ I think that’s it... try that
Answer:
Try 1 1/6
Step-by-step explanation:
Answer:
2 bc cos A
Step-by-step explanation:
Cosine rule