8ft. I hope this helped. .-.
This one is similar to the previous one.
Answer:
rational, yes 7/3 is rational
The same way.

means it's derivative of function

with respect to


means it's derivative of function

with respect to


means it's derivative of function

with respect to
your answer would be 18,100.
35,768-17,652= 18,116
and you have to round so you get
18,100