Teresa is riding on a bike course that is 45 miles long. So far, she has ridden 18 miles of the course. What percentage of the course has Teresa ridden so far?

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