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A 20-row theater has three sections of seating. In each section,

the number of seats in a row increases by one with each successive row.The

first row of the middle section has 10 seats.The first row of each of the two side

sections has 4 seats.

AFind the total number of chairs in each section.Then find the total seating

capacity of the theater.

BWrite an arithmetic series to represent each section.

Verified Answer :

mmmm888888888

I'm not 100% sure but try A.

syed514

The total no. of chairs are 930.
for each of the end sections

∑i=423i

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