Find the value of each variable, please don’t send me any links

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

Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school