Answer:
(a) b > 0
(b) s ≤ 0
(c) w ≥ -6
Explanation:
Symbol notation
- < means "less than".
- > means "greater than".
- ≤ means "less than or equal to".
- ≥ means "greater than or equal to".
- = means "equals".
A negative real number is any real number that is less than zero.
A positive real number is any real number that is greater than zero.
Zero is neither positive nor negative.
Part (a)
If b is positive then it is greater than zero:
Part (b)
Nonpositive means not positive, so either negative or equal to zero.
If s is nonpositive then it is less than or equal to zero:
Part (c)
w is greater than or equal to -6: