What is the value of x? ​

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site