How can i use scalling to predict the product of a number anda fraction

What is the value of x? enter your answer in the box. photo attached.

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 is not a subset of {1,2,3}?