The line plot below gives the number of cups of flour used in different recipes. AlternativeText

What is the difference between the greatest number of cups of flour used and the least number?

A. 2 cups
B. 214 cups
C. 312 cups
D. 334 cups

332

Step-by-step explanation:

The greatest amount is 334

the least amount is 2

334-2=332 cups

- "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."