3 = x - 12 what does x equal ?

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint. how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

Which of the following domains provide a real value periods