The weather conditions are very variable in the mountains.

The value of the age variable is not correct in the form.

The variable cost of production increases with the quantity produced.

The mountain hare is a fascinating animal to observe in its natural habitat.

A variable star is a star whose brightness varies over time.

The plane is equipped with variable-geometry wings.

In Python, a class variable is shared by all instances of the class.

The variable stars twinkle in the night sky.

Variables are important in programming.

She changes her mind variably.