When finding the percent, round to the nearest tenth of a percent when necessary. At the beginning of a trip, a tire on an automobile has a pressure of 32 psi (lb/in2). At the end of the trip, the pressure is 35 psi. What is the percent increase in pressure?

the answer is d. 75%

- "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."

$15 each

step-by-step explanation:

$45/3 children= $15 each