Two sevenths of the crowd cheered wiley. the rest of the crowd stood quietly. what fraction of the crowd stood quietly.

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Pls math have no ideamultiply and simppify. 2x^2y^3z^2 • 4xy^4x^2