Patricia needs 2 pints of purple icing to decorate cupcakes. She will use the following recipe for 1 pint of purple icing.
• 1 pint of white icing
4 1/4 teaspoons of blue food coloring
2 1/2 teaspoons of red food coloring.
explain two different ways for patricia to find total number of teaspoons of blue and red food coloring necessary to make 2 pints of purple icing