What value of h makes the equation true? −18(2h+4)+12=−74

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Is experimental probibilty the same as the observed frequency in math? i need the answer asap!

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)