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The subject this question is from is arithmetic series & applications, and i'm in algebra 2.

I'm the one who posted the question that you are all replying to :) So I'm the one asking HiyinLink what the correct answer is.

That is the wrong answer.

What is the correct answer then, HiyinLink?

Yes!!!!!!!!!!!!!!

Talk thread is closed unless Lagtho wants to respond

You have been asking very similar questions...are you grasping the concept were teaching???

Thanks LagTho you are AWSOME 

Slightly....

If I'm reading this correct, that last bit of information about E is unneccesary. The area of a trapezoid is the average of the bases times the height. Since BC is perpendicular to the bases, (AB and DC) it is the height. To find the average of the bases, add them together and divide them by how many factors there are. So \(A = \frac {14 + 18}{2} \cdot 7 = 16 \cdot 7 = 112\).

Hope this helps!

Because they get a 150 profit every year you took it as if th profit started in febuary..

(1300, 1450, 1600, 1750, 1900, 2050, 2200, 2350, 2500, 2650, 2800, 2950) =$25,500

Sum =N/2[2*F + (N - 1)*D, where N=12, F=1,300, D=150
Sum =12/2[2*1,300 + (12 - 1)*150
Sum =6[2,600 + (11*150)]
Sum =6[2,600 + 1,650]
Sum =6*[4,250]
Sum=$25,500 - Restaurant's profit in 12-month period.