2.0 is how many time greater 0.2

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form