Question

Sarah needs to register for one course in each of the six subject areas. The school offers five math four language, three science, three English, five social studies, and six elective courses. In how many ways can she register?

Answer 1

When you choose 1 object from
`n` objects, you can do it in
`n` ways.

So, the answer is
`5\cdot4\cdot3\cdot3\cdot5=900` ways.