A train travels 16 miles in
20 minutes. At this rate, how
many minutes will it take to
travel 12 miles?

In what organelle does photosynthesis take place?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?