For 9. the third table and for 10. the second table
X - 0.17 = y
add 0.17 to both sides
x = y + 0.17
First you have to figure out the length of the track:

r is the half of the diameter:
200ft : 2 = 100ft

= 200

≈
628,31
The athlete has to run ca. 5280ft for one mile:
5280 : 628,31≈8,4
The athlete has to run 8,4 laps
the value of x is 36 degree