C is the answer . now gimme my award
It means 68% of all the final scores went in bewtween 80 and 90 percent
The answer is C. 2 because 4 x 2 = 8. Please mark me as brainliest! Good luck!
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:
0.01
Step-by-step explanation: