Area and perimeter for each one! i need to show work so explain: )

Sorry but I'm in a hurry. All you need to do is base times height to get the area and all you need to do is add all of the sides for the perimeter. For example to get the perimeter just do 4.1+4.1+4.1+4.1

- "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."

answer: 5100 just subtract

step-by-step explanation: