Which expression is a product of the factors 6xy(2x

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

1foot = 12 inches; 1 yard = 3 feet

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