Simplify. 4(7d+9)

A. 28d + 36

B. 28d + 9

C. 11d + 13

D. 11d + 9

Several paint mixtures are made by mixing blue paint and white paint. paint colors blue paint white paint mixture a 5 cups 12 cups mixture b 6 cups 6 cups mixture c 4 cups 12 cups mixture d 5 cups 6 cups which mixture has the highest ratio of blue paint to white paint