4 (m + 7) Which expression(s) is (are) equivalent to ? Select ALL that apply.

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

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?

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points