The use of this machine is simple.

This recipe is very simple and delicious.

This recipe uses a fixed quantity of ingredients.

I bought the ingredients to cook at the supermarket.

This computer can be used by anyone.

I took a course in quantitative analysis at university.

In this research, quantitative data analysis plays an important role.

We ordered new materials for experiments.

The material costs for this project are too high.

There are still many causes for concern about the future of the economy.