Suppose you park your car at a trailhead in a national park and begin a 2? -hr hike to a lake at 7 a. m. on a friday morning. on saturday ? morning, you leave the lake at 7 a. m. and start the 2? -hr hike back to your car along the same trail you took to the lake. assume the lake is 2 mi from your car. let? f(t) be your distance from the car t hours after 7 a. m. on friday morning and let? g(t) be your distance from the car t hours after 7 a. m. on saturday morning. complete parts a to b below. a. evaluate? f(0), f(55), g(0), and g(55).b. let h(t)=f(t) g(t). find h(0) and h(55).