Use the​ "at least​ once" rule to find the probabilities of the following events. Getting at least one tail when tossing four fair coins
The probability is .
​(Type an integer or a simplified​ fraction.)

How do i do this activity, is appreciated

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?