GET THE POINTS WHILE YOU CA

Z4=289 there should be 4 answers total 2 whole numbers and either 2square root or imaginary number answers

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?