The absolute value is the value of the number without the sign. So in this case it's 3 and -3
10 is 287.9999 m squared and 11 is 2,435.125 yards squared
No 15/3 does not belong to the set of numbers
Since 3=30/10, (30+1)/10=31/10. 31s/10=(30+1)/5 ( we get 30 because 5*6=30) = 31/5. Multiplying both sides by 10, we get 31s=62 (since 5 is a factor of 10, we can do 10/5 =2 and multiply 2 by 31). Dividing both sides by 31, we get s =2
