May someone provide feedback?

the image below shows two dilated figures with lines uv and wx drawn. if the larger figure is dilated using a scale factor of 4, what relationship do lines uv and wx have? would this relationship hold true for all dilations?

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?