The first note is the whole note, which is held for four counts. (In common time — four beats is the full measure. Hence, the name whole note.) The second note in is called the half note and held for two counts — half a whole note.
In 4/4 time a whole note gets FOUR beats; a half note gets TWO beats, and a quarter note gets ONE beat. Based on what you saw above, that 4/4 time signatures mean four beats to the measure and the quarter note gets the beat, 18.
The first note is the whole note, which is held for four counts. (In common time — four beats is the full measure. Hence, the name whole note.) The second note in is called the half note and held for two counts — half a whole note
