To answer the question above, make use of one of the definitions of the inverse functions. If h(x) and f(x) are inverses of each other, then applying the operation, h(f(x)) will give back the value of the initial value. Therefore, the answer is x.
Remark The key step is just to subtract 5 from both sides. The pointed of the inequality still points away from the variable and towards the number. As long as that remains true, the correct answer can be found.
Solution 2.7 ≤ b + 5 Subtract 5 from both sides. 2.7 - 5 ≤ b - 2.3 ≤ b Write with the variable on the left. b ≥ - 2.3 <<<< answer
