To answer the questions How much? and How many? certain quantifiers can be used with countable nouns (cars, books, people), others with uncountable nouns (sugar, time, money) and still others will all types of nouns.
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* USING "MUCH" AND "MANY" :
Much and many are mainly used in interrogative and negative sentences. They are also used in affirmative and negative sentences in combination with too and so.
Notice: the word many can be used alone in affirmative sentences while the word much cannot.
Much is replaced in affirmative sentences with a lot of or lots of (these expressions can also replace many). You can find more détails on THIS PAGE.