Solve for x. x+23≤45 enter your answer, as an inequality, in the box.

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

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?

I’m really confused and need to learn this