Answer:
Below.
Explanation:
(a). 5 > 4 + x
4 + x < 5 (Note that the sign is flipped)
x < 5 - 4
x < 1.
(b) and (c) are solved in the same way.
(d) 7 <= a/3
a/3 >= 7
Multiply both sides by 3
a >= 21.
(e) - as above.
(f) 6 >= 3(p + 2) - 11
3(p+2) - 11 <= 6
3p + 6 - 11 <= 6
3p - 5 <= 6
3p <= 6 + 5
3p <= 11
p <= 11/3.