Two trains, Train A and Train B, weigh a total of 421 tons. Train A is heavier than Train B. The difference of their weights is 313 tons. What is the weight of each train?

In the diagram of circle a what is m

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

When only separate discreet points are graphed it is called?