1 foot is equal to 12 inches. How many inches are in 2 feet, 6 inches

30 inches

Step-by-step explanation:

If there are 12 inches in one foot, then that means that 2 feet is double 12, or 24. Plus, we have the 6 inches added, so we must add 24 + 6, which is 30 inches in total. Hope this helps!

- "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."