When the radius of a circle is multiplied by a factor of 3, by what factor will the area of the circle change? the area of a circle with radius 3 is x times big as the area of a circle with radius of 1

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

Find the slope of the line passing through a pair of points

Is the point (0, 8) on the x-axis or y-axis? how do you know?