How many songs are in the album "Memoirs of an imperfect Angel" by Mariah Carey?

There are a total of 21 songs in "Memoirs of an imperfect Angel".

When was the album "Memoirs of an imperfect Angel" by Mariah Carey released?

"Memoirs of an imperfect Angel" was released on September 28, 2009.

#	Track	Artist	Key	Camelot	BPM
1	Betcha Gon' Know (the prologue)	Mariah Carey	A♭ Major	4B	128
1	Obsessed - Cahill Radio Mix	Mariah Carey, Cahill	A♭ Major	4B	128
2	Obsessed	Mariah Carey	B♭ Minor	3A	86
2	Obsessed - Seamus Haji & Paul Emanuel Radio Edit	Mariah Carey, Seamus Haji, Paul Emanuel	A♭ Major	4B	128
3	Obsessed - Jump Smokers Radio Edit	Mariah Carey, Jump Smokers	A♭ Major	4B	128
3	H.A.T.E.U.	Mariah Carey	A♭ Major	4B	128
4	Obsessed - Friscia and Lamboy Radio Mix	Mariah Carey, Friscia And Lamboy	A♭ Major	4B	128
4	Candy Bling	Mariah Carey	A♭ Major	4B	128
5	Ribbon	Mariah Carey	A♭ Major	4B	128
6	Inseparable	Mariah Carey	A♭ Major	4B	128
7	Standing O	Mariah Carey	A♭ Major	4B	128
8	It's A Wrap	Mariah Carey	A♭ Major	4B	128
9	Up Out My Face	Mariah Carey	A♭ Major	4B	128
10	Up Out My Face (the reprise)	Mariah Carey	A♭ Major	4B	128
11	More Than Just Friends	Mariah Carey	A♭ Major	4B	128
12	The Impossible	Mariah Carey	A♭ Major	4B	128
13	The Impossible (the reprise)	Mariah Carey	A♭ Major	4B	128
14	Angel (the prelude)	Mariah Carey	A♭ Major	4B	128
15	Angels Cry	Mariah Carey	F Major	7B	75
16	Languishing (the interlude)	Mariah Carey	A♭ Major	4B	128
17	I Want To Know What Love Is	Mariah Carey	A♭ Major	4B	128