A and B can do a piece of work in 18 days , B and C in 24 days and A and C in 36 days . How much time will A alone take to finish the work?

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9