Which function has the same domain as y= 2 sqrtx

Easy points boii. read it. ya. fresh

Need on this geometry question. explain how you did it.

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?