If f (x) = 4x+3 and g(x) = 5x-1, what type of function is the result of h(x) = f(x) x g(x)?

It takes jonas 7 1/4 minutes to run the mile. it takes mario 8 5/12 to run the mile. how much faster is jonas than mario? 5/6 minute 1 1/3 minutes 1 1/6 minutes 1 1/2 minutesi will give points and brainlest

Can someone me out here and the tell me the greatest common factor

The function models the number of accidents per 50 million miles driven as a function