In a batch of 280 water purifiers,12 were found to be defective. what is the probability that a water purifier chosen at random will be defective.

Given that de, df, and ef are midsegments of △abc, and de=3.2 feet, ef=4 feet, and df=2.4 feet, the perimeter of △abc is .

Arectangle with an area of 47 m² is dilated by a factor of 7. what is the area of the dilated rectangle? enter your answer in the box. do not leave your answer as a fraction.

The graph of y=x3 is transformed as shown in the graph below. which equation represents the transformed function?