A card is drawn from a standard deck of 52 playing cards. Find the probability that the card is an ace or black card.

John runs a computer software store. He counted 120 people who walked by his store in aday, 50 of whom came into the store. Of the 50, only 21 bought something in the store.Estimate the probability that a person who walks by the store will come in and buysomething. Round your answer to the nearest hundredth.

in a break room there are 3 bags of pretzels 2 bags of doritos and 4 bags of popcorn .find the probability that someone selects a bag of pretzels or a bag of doritos.

You are dealt one card from a standard 52-card deck.playing cardsFind the probability of being dealt a ten and a nine.