A skier has decided that on each trip down a slope, she will do 2 more jumps than before. On her first trip she did 6 jumps. Derive the sigma notation that shows how many total jumps she attempts from her fourth trip down the hill through her twelfth trip. Then solve for how many total jumps she attempts from her fourth trip down the hill through her twelfth trip.

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\[\sum_{i=4}^{12}2i+4 ; 180 jumps\]

\[\sum_{i=2}^{10}2i+4 ;144 jumps\]

\[\sum_{i=2}^{10}4i+2 ; 234 jumps\]

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