I forgot how to do this. Help me plz

Acircle has a circumference of 28.36 units what is the diameter of the circle

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value