[40 POINTS] WILL MARK BRAINLIEST It will be very much appreciated and I will heart the correct comment and give it 5 stars Im really sorry if I keep repostinfg for some reason the points are weird​

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.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?