Help please fast and don’t say files

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 are the exclude value of mn+3m

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.