Ahot air ballon begins its descent at a rate of 22 1/2 feet per minute. how long will it take for the balloon's elevation
to change by -315 feet?

When can u say there is no solution for a system of linear inequalities? explain your answer and show with a system and graph

Find the area of a parallelogram with the given vertices. p(-2, -5), q(9, -5), r(1, 5), s(12, 5)

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