The amount of pancakes left at the easter pancake breakfast sale is given by the function s(t) = 300(0.85)t where s(t) stands for the number of pancakes left and t stands for time in minutes. at the same time, more pancakes are being made, and this can be represented by the equation p(t) = 12t where t stands for time in minutes and p(t) stands for the number of pancakes created after t minutes. if the function s(t) and p(t) are added, what is the result? .

- "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."

no i do not : ( what is it?