Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 56 miles per hour. Then, in t
he second hour, she traveled at a speed of 71 miles per hour. What is the percentage increase of Seraphina's speed? If necessary, round to the nearest tenth of a percent. A. 21.1%
B.73.2%
C.26.8%
D.78.9%
32÷16=2 so it takes two minutes per airplane. if she makes airplanes for 96 minutes at the same pace (2 min per airplane) then you need to divide 96 by 2 which gives you 48!
