eight
there are 8
In the modern (tempered) major scale the interval between the third and fourth, the seventh and octave is always a semitone. In C-major where there are no sharps or flats the third and fourth notes are E and F, the seventh and octave is B and C. That is why there are no sharps or flats. It also occurs in f-major between the 7th and octave
F major contains one flat and no sharps.
In piano: A scale includes the full 8 notes from a given octave. An octave is a series of 8 notes, if its a C octave, it includes C D E F G A B and C. The scale includes the sharps and flats required of a key.
F major contains no sharps at all. It contains one flat.
One (f sharp)
An octave is made up of notes spanning from A to G, from one A to the next A is an octave, and the word 'noat' is spelled 'note'.
E sharp has 3 sharps and 4 double sharps, the sharps are E sharp, A sharp, and B sharp.
One can purchase an Octave pedal from many different stores and retailers. Some examples that sell Octave pedals include Musician's Friend and Cheaper Pedals.
34 sharps
A major has 3 sharps, A minor has no sharps or flats.
One : F sharp!