A map of the US has a scale of 1 in = 300 miles. If two cities are 3.5 inches apart on the map, what is the actual distance between them?

 The actual distance is 1050 miles

Step-by-step explanation:

Multiply the scale unit distance by the inches in the map.

300 × 3.5 = 1050

- "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."