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For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Write and solve a real word problem that involves determining distance on a coordinate plane

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?