May 2023
Intermediate to advanced
552 pages
16h 16m
English
This chapter covers
Suppose you’re organizing a party to celebrate your birthday. How much food and drink do you need to buy? Calculating the right numbers for your shopping list is difficult due to the following factors:
How many people will attend? You received several confirmations, but some guests will cancel at short notice or show up without letting you know in advance. Therefore, the number of guests is vague.
How much will your guests eat and drink? ...
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