HELP

If the probability of a getting 4/25 out of 200 people, what about 500 people?

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.

You decide instead to take the train there. the train will take 135 minutes. convert this into hours and minutes.

What are the solutions of the following system? y=-2x^2 y=x-2