Solve 1/2n +3 < 5. Which graph shows the solutions

Which compound inequality could be represented by the graph?

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

An expression for the average of x 2x and 3y