In a survey 4/12 of the students chose friday as their favorite day of the week and 5/12 chose saturday. what fraction of the students surveyed chose friday or saturday?

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?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1