The average 8-18 years old spends per day infront of a screen doing very little or no physical activity

The y-value if a data point corresponding to x1

Carbon dioxide can be produced form what type of power generation?

When amy exercises in her fitness center for 1 hr she burns a total of 475 calories.if she burns 9 calories a minute jogging on the treadmill and then burns 6.5 calories a minute pedaling on the stationary bicycle how many minutes of the hour does she spend exercising on the bicycle?