Please help! Find what the value of y is for each one. The value for x is given already. (Picture included) Worth 30 points! :)

27 is what percent of 108? 27 is % of 108

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet