You have a bag containing 12 red marbles, 8 blue marbles, and 16 yellow marbles. You select one at random. what is the probability you select a blue marble. a 4/9
b 2/9
c 1/3
d 1/2

step-by-step explanation:

i do not know the answer

step-by-step explanation:

- "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."

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.