ABOUT:
いくら can be used for asking how many things there are, but it is most often used when asking how much something costs.
Examples:
この車は、いくらですか?
How much is this car?
値段は、いくらですか?
What is the price?
お金は、いくら持っていますか?
How much money do you have?
Other Forms:
■ いくらでも as much as you like; as many as you want
9 お菓子は、いくらでも取ってください。 Take as much candy as you'd like.
■ いくら~ても no matter how (much or many) [use with the て form; takes a negative verb]
9 いくら泣いても、あげない。 No matter how much you cry, I won't give (it) to you.