A counter in Duncan's kitchen is 1 yard wide and 3 yards long. Duncan wants to replace the counter with a granite countertop, which would cost $207.00 per square yard. How much would the granite countertop cost?

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

The longer leg of a 30-60-90 trangle is 18