Walter buys a bus pass for 30$. everytime he rides the bus money is deducted from the value pass. he rode 12 times and 24$ was deducted from the pass. how much does each bus ride cost?

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.

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

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