What is the lcm of two numbers if one is the multiple of the other? give example.

what is the lcm of two number that have no common factors greater than 1? give example.

* i'm my son and thsee questions are throwing me off..

Anew shopping mall is gaining in popularity. every day since it opened, the number of shoppers is 5% more than the number of shoppers the day before. the total number of shoppers over the first 10 days is 1258 how many shoppers were on the first day?

Through non-collinear points there is exactly one plane.

Give me the equations of two lines that have the same slope but are not parallel.