Answer:
Slope is 0.094,
It represents the average rate of change.
Step-by-step explanation:
Since, the slope is the ratio of difference in y-coordinates and the difference in x-coordinates,
Also, in a order pair, first element shows the x-coordinate and second element shows the y-coordinate.
Here, the data points are (1950, 0.75) and (1997, 5.15),
Thus, the slope is,




Also, Slope represents the average rate of change.
n=number of hours
inequality = 3n+10=40
Solution = n = 10. So 10 hours.
0.95
Because 1 is the total, so 1 - 0.05 = 0.95