Ann thought of a number n, multiplied it by 5 and added 7. then she told the result r to jim.

find the domain and the range of this function.

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.