Y is an integer and -5

With this question! what is process of elimination? ? p.s. my brothers acc got banned so add his new one @ yamauchiyamyam17

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

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?