Talor iis competing in a 30 kilometers race. She has already ran 12.35 kilometers through a park and swam 3.75 kilometers. She will bike the rest of the way. How far does talor need to bike to finish the race

Me because some of question i don’t understand

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

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.