Which of the following is the best definition of the probility of a certain outcome of an event
a. the number of successful outcomes
b. the set of all possible outcomes
c. the mostly outcome
d. sucessful outcome divided by possible outcomes

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Me. i can't figure out this question. give an explanation too. .