Which equation is y=x2+4x−7 in vertex form?

What is the distance between (–2 1/2,-3) and (1, –3)?

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.

For how answer my question this will be the last question can you answer in math subject