What is an number between 300 and 400 it is divisible by 5 and 9

Is every rectangle is a parallelogram? true false

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.

Could somebody me with this radical simplification?