What are the zeros to -2x(3x+1)^ 2 (x+7)^7

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

3x + 4y = 5 x- 3y = -7 solve by substitution

Aschool had an election where the candidates received votes in the ratio 1: 2: 3. if the winning candidate received 210 votes, how many total people voted in the election?