The answer to the question is
F-1(x)=1/2x-3/2
7.2 and 11.16666666666666... (going on forever.) Another way to say this is 11.16 with a line over the 6 to mean the six goes on forever. I may be wrong.
Answer:
speed = distance/ time so:
(2/7) / (2/5) = (2/7) x (5/2) = 10/14 = 5/7 mph
5/7 = 0.71 miles per hour if you need decimal formatStep-by-step explanation: