The Canadian constitution requires that equal importance be given to English and French. Last year, Air Canada lost a lawsuit and had to pay a six-figure fine to a French speaking couple after they filed complaints about formal in-flight announcements in English lasting 15 seconds, as opposed to informal 5 second messages in French.

The French - speaking couple were upset at $\_\_\_\_$ .

Select the word that fits the analogy :

Explicit : Implicit : : Express : $\_\_\_\_$ .

The untimely loss of life is a cause of serious global concern as thousands of people get killed $\_\_\_\_$ accidents every year while many other die $\_\_\_\_$ diseases like cardio vascular diseases, cancer, etc.

A superadditive function $f(\cdot)$ satisfies the following property

$$ f\left(x_1+x_2\right) \geq f\left(x_1\right)+f\left(x_2\right) $$

Which of the following functions is a superadditive function for $x>1$ ?