Find the least number of people that need to be randomly seated in a row of 49 chairs to be sure that 5 or more consecutive chairs are occupied.

note:

I'm not sure about my answer

Step-by-step explanation:

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40% im not sure but hope it helps to you

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: