Which is the constant of variation for the quadratic variation? 7y = 12x^2

Δabc is reflected across line l to form δ alblcl, and a¯¯¯al¯¯¯¯ intersects line l at point d. which equation is not necessarily true?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

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?