Sienna planned a rectangular pool as shown in the scale drawing below. she decided to change the length, the longer side of the pool from 22 to 27.5ft. which expression finds the change in scale factor. d. is 27.5/22ft (there’s a photo)

- "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."

step-by-step explanation:

because it just is

using pemdas, (order of operations) you'll see the answer is 24.