Please help fast im in test and its really hard

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 paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

What is the binomial expansion of (2x-3)^5