Answer:
In a paragraph
Explanation:
A mobile phone is a voice communication device that is not permanently attached to a telephone network by a physical connection. It uses radio signals to connect to another device to provide the connection to a telephone network. Various radio protocols are used such as DECT, WI-FI, Bluetooth, GSM, GPS, etc.
Explanation:

if this helps you then please make me brainlist
Answer:
Because the narrator loses track of time during band practice one evening, he is late getting home for his math tutoring session.
Explanation:
Later, his math tutor realizes that the narrator cares deeply abount music, therefore, helps him to rejoin his band by speaking to the narrator's parents.
Help would be found in the most unexpected of places because it's the narrator's Math tutor who helps him get back in his band.