Sorry i ment to put 14/15 - 1/3 then put as a fraction in simplest form

Step-by-step explanation:

14/15 - 1/3

= 6/10

In simplest form

= 3/5

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet