Xian plans to run 14 laps around a track. Each lap is 400 yards. So far Xian has run 1,680 yards around the track. What percentage of the urn has Xian completed? Please show your thinking .

F) 7%

G) 30%

H) 70%

J) 3%

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

assuming this is from a math graphing problem.

7 would be on the x-axis which is the horizontal line on the graph

84 would be on the y-axis which is the vertical line on the graph