You are shown a liquid that looks the same throughout. you're told that it contains more than one type of element and that the proportion of each varies throughout the liquid. is this an element, a compound, or a mixture?

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

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?

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !