Word/Probability Problems PLEAASEE help! Assistance needed A.S.A.P!!!

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Word/Probability Problems please help!!!

Hi all,

I REALLY need help to get started on a few problems. Here are the problems:

1. Find the smallest positive integer, which, when divided by 3,4, or 5 will have a remainder of 2.

2. The U.S. Open Tennis Championship is a single elimination tournament. If there are 300 players entered in the champ., how many matches will be necessary do determine the champion?

3. Two cards are drawn from a standard deck. Find the probability that at least one of the cards will be a heart.

4. One bag contains 3 white marbles and 2 red marbles and a second bag contains 3 white marbles and 5 red marbles. One marble is drawn from the first bag and placed in the second bag. What is the probability that a marble now drawn from the second bag is red?

THANK YOU TO THE PEOPLE WHO TOOK TIME TO READ THIS AND BIG HUGS TO THOSE WHO REPLY!!! THANKS ALL!!!! :) :)
 
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