Solve for x:
X-3= 12
—— —
18 9

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

32a³b² 8ab² simplify the following expression.

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