It has greatly effected the life expectancy by introducing new machines used to cure/ research diseases.
I would simply phone or e-mail them or tell them directly about the error and say that according to my understanding (use the "I" statement) there appears to be a such and such error that needs to be corrected so that the text does not say give the wrong impression.
If a student's weight is at 117.2 lb then that means the student's weight is in between the numbers of 117 and 118 lb. It is because her weight is near in each numbers, where her weight lies in between the two.
B is the answer you are looking for this is because it extends the range of motion to a point that is too far for joints to handle.
