An expression is code that gives a value. it is either asssigned or evaluated. x = 7 3 + 4 = 7
You use loops when you want to repeat afunction multiple times.
The reading for lopos gives the example of naming the diferent music types. So the user asks the loop to keep adding musicTypes to all ‘optioms”
The loop repates until the conditions are specified to be false. In the example of naming the diferent music types, the loop would end when the options stop being labeled as options.
As long as the conditions are true.