Answer:
Least value: s + r
Greatest value: s - r
Closest to zero: s
Explanation:
Here, we can approximate r as -6 and s as 2.
If we calculate each possibility using our approximations above:
s - r = 2 - (-6) = 8
s = 2
s + r = 2 - 6 = -4
Using these numbers, we can conclude:
Least value: s + r
Greatest value: s - r
Closest to zero: s