Heathers age is 3 years more than one half her cousin rachels age. if the difference in their ages is less than 4 years, what is the oldest that rachel can be in years?

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