How much is the price of this product?

He is deserving of that award.

It is important to understand the importance of health.

You can solve the problem by using this method.

This company strictly adheres to the principle of fair trade.

He saved money using the 'hou' (alternative spelling of 'fran') to go to France.

He solved complex mathematical problems using his new calculator.

In linear algebra, triangular matrices play a very important role.

There is a complex love triangle between them.

Trigonometric functions are one of the basic concepts in mathematics.