Помогите пожалуйста сделать. Перевести предложения в косвенную речь.

A representative of S. claims that if fifty customers a day in every S. store brought their own mug, the resulting savings from unused disposables would be the equivalent of saving 300000 trees.
The professor taught us not to worry about what the world was doing and then he advised us to worry about our own deeds that were contributing to the numerous environmental problems on the planet.