What are the inputs and outputs of the app "Spotify"?

Find the inverse function of f(x)= 1+squareroot of 1+2x

Why would a programmer use the logical operator and in an if statement? a: when an action is to be taken that requires both conditions to be falseb: when an action is to be taken that requires both conditions to be truec: when an action is to be taken that requires the first condition to be falsed: when an action is to be taken that requires the second condition to be truei took the test and the answer is b.

Experimental data that is expressed using numbers is said to be