If the last sharp is g the key signature is?

i don't know

Explanation:

F

Explanation:

For key signatures with sharps, the key signature is the note name half step above the last sharp. This is the key of G because F# is the last sharp in the key signature.

changeable lenses of different focal lengths allow light to enter the camera, which then forms the image on light-sensitive film" is the one among the following statements about working principle behind a basic still camera is true.