A certain car has a fuel efficiency of 47.4 miles per gallon (mi/gal). Express this efficiency in kilometers per liter (km/L). km/L Need Help? Read It 4. [-/6 Points] DETAILS SERCP11 1.8.P.053. 0/5 Submissions Used MY NOTES ASK YOUR TEACHER A surveyor measures the distance across a straight river by the following method: Starting directly across from a tree on the opposite bank, he walks x = 110 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from his baseline to the tree is 0 = 30.60. How wide is the river? y = m x Need Help? Read It