The length of time in hours of two airplane flights are represented by the following functions, where x is the number of miles for
the flight:
flight a: f(x) = 0,003% -12
flight b: g(x) = 0,0015% + 0.8
which function represents the total of the flight times, h(x) = f(x) + g(x)?
h(x) = 0,0015% - 2
h(x) = 0,045% -0,4
h(x) = 0.0045x-04
h(x) = 0.0045x-2