How many ways can 5 students be arranged in straight line?

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.

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

How do you write a paragraph proof to prove that the corresponding angles shown are congruent