Ahmad drove to the mountains last weekend. there was heavy traffic on the way there, and the trip took 10 hours. when ahmad drove home, there was no traffic and the trip only took 7 hours. if his average rate was 18 miles per hour faster on the trip home, how far away does ahmad live from the mountains

Someone answer this asap for gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a. gabriella averages 7.5 u.s. dollars for every 100 euros. b. gabriella averages 100 u.s. dollars for every 25 euros. c. gabriella can exchange 75 u.s. dollars for 100 euros. d. gabriella can exchange 100 u.s. dollars for 75 euros.