Answer:
6h
Step-by-step explanation:
If Olivia teaches 6 classes that are 1 hour, she teaches 6×1 is 6 hours.
If the classes are two hours, she teaches 6×2 is 12 hours.
Try with numbers to see what math operation you are doing. Its times.
6×h is written 6h
You can find any ordered pair in which the y coordinate is 4 times the x coordinate.
For example, an ordered pair could be (2,8) or (5,20)
Solution:
Average time per line = total time / total lines
Average time per line = (3x^2 + 2)/(x + 4)
Average time per line = 3x - 12 + (3x^2 + 2)/50 milliseconds