How much should Maria initially invest if she wants to have $200,000 in twenty years when the bank compound interest quarterly

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 do i do this activity, is appreciated

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.