Mr. Jones is a geographical scientist. He researches the rise in the carbon dioxide level due to increasing pollution. In 2003, the average carbon dioxide level was about 223 billion metric tons, and in 2008, it was about 1,350 billion metric tons. Between 2003 and 2008, Mr. Jones found the rise to be approximately what × 10 per year. drop down options are 4.25 2.25 and 3.25. other options are 11 13 and 12 i got this question in math

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

asdsaddsa

step-by-step explanation:

b. hoped i'm right lol

step-by-step explanation: