Question: In this problem, you will practice using string manipulation in r studio, with a focus on the use of regular expressions - the mini language

In this problem, you will practice using string manipulation in r studio, with a focus on the use of regular expressions - the mini language for efficiently specifying string patterns. In the following sentence, compute the total number of fruits on my shopping list: todo <- "today, I need to purchase 3 apples, 5 limes, and 2 lemons."

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