What is the result when the number 84 is decreased by 50%?

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

Patty made a name tag in the shape of a parallelogram. reilly made a rectangular name tag with the same base and height. explain how the areas of the name tags compare.

This question is hard for me to answer can you me. the question is find the value of x.