The double number line show that 4 bottles of water cost 10 dollars at a music festival.

based in the ratio shown in the double number line, how much does 3 bottles of water cost?

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.