Find the greatest common factor of 110, 40 and 120

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?

Multiplying fractions by whole number 5 x 1/3=?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me