Answer:
the leanth of the track is 1/2 miles long.
Step-by-step explanation:
Im sorry that i couldn't complete all the questions, I had a family thing to go to so sorry.
Answer:
20%
Step-by-step explanation:
With those changes, the fraction is multiplied by ...

That is, the value of the fraction is decreased by 20%.
.035 is the answer to your question
Nine and ninety-eight hundreths