Question: 1. Explain why the pattern d{2} against the target $101.20 matches 10 and 20 2. In the target Hahahahahaha, how many matches are there for

1. Explain why the pattern \d{2} against the target $101.20 matches 10 and 20

2. In the target Hahahahahaha, how many matches are there for the pattern hah and why

3. True or False: the pattern [David] matches exactly the occurrences of David as a substring of the target. Why?

4. True or False: the pattern [0-90] matches 57. Why?

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