What is the sum of the interior angles of a polygon with 28 sides? Include the formula in your answer and show your work. Be sure to include the units of measure in your final answer. There is no image

Use (n-2) times 180 so the answer is 4,680 degrees

(28-2) times 180 (degrees are your units)

Step-by-step explanation:

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- "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."