What is the solution of the system? use substitution. y = x + 6 y = 2x

a. (2, 4)

b. (6, 12)

c. (–12, –6)

d. (–6, –12)

Isabelle is mixing red and blue paint to make purple paint she adds 3/10 of a fluid ounce of red to 12/25 of a fluid ounce of blue to make 1 1/30 fluid ounces of purple how many fluid ounces of red paint ounces of red paint will she need to make 3 fluid ounces of purple paint