Art and Bette Meish purchased 40 stamps, a mixture of 32c and 19¢ stamps. Find the number of each type of stamp if they spent $12.15.​

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Ineed to know the answer to this algebra question.

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?