Will give 30 points which point on the scatter plot is an outlier point k is at the end

What is the probability of drawing three queens from a standard deck of cards, given that the first card drawn was a queen? assume that the cards are not replaced.

Nine more than four times a number is the same as one less than twice the number. find the number?

What is the result of adding the system of equations? 2x+y=4 3x-y=6