Molly walked 3.45 miles on a hike. her sister walked 1.23 miles. her brother walked 0.85

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale