Question: Hello, I would like to know the answer to the following question, and if possible, if you along with the answer if you could provide

Hello, I would like to know the answer to the following question, and if possible, if you along with the answer if you could provide some brief explanations for the steps taken so I develop a deeper understanding I would appreciate it, thank you! p.s. I am attaching a picture of the question below. Also please note that we should be using properties and methods from the 'counting' unit in discrete mathematics. Thank you!!

Hello, I would like to know the answer to the following question,

How many positive integers between 100 and 1000 (inclusive) a are divisible by 7 or 13? ( l (b) are divisible by exactly one of 7 or 13? l (c are not divisible by 7 or 13? (d) have distinct digits? (e) have distinct digits and are even

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