What the area of the rectangle if the length is 20, the height is 12 and the base is 10

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

Which expression will have the same sum as 3_8 + 1/4?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles