Using sigma notation, describe the total length of 7 pictures hung side-by-side. Then find the total length the pictures occupy along the wall if the first picture has a length of 10 inches and the length of each successive picture is 4 inches longer than the previous one. (2 points)

Question

anonymous · Answer

(n=2) below Σ, 8 above Σ, 4n+2.  (4(2)+2) + (4(2)+2) + (4(2)+2) + (4(2)+2) + (4(2)+2) + (4(2)+2) + (4(2)+2) = ?
10+14+18+22+26+30+34=154