David has a hose that is 27 ft long. He wants to cut it into two pieces so that the longer piece (y) is 3 ft more than 2 times the length of the shorter piece (x). Choose the two equations that will create our system of equations for this story problem.

A. x + y = 27
B. y = 3y - 2
C. x - y = 27
D. y = 3 + 2y

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Is the number 128.439 a rational number