Sarah Had a math test and she got 400/450 questions right. The test was worth 450 points. What is the PERCENT she got on her test ( ex. 90% 67% etc)

Name the most appropriate metric unit for each measurement like the mass of cow

To solve the system of equations below, pedro isolated the variable y in the first equation and then substituted it into the second equation. what was the resulting equation? { 5y=10x {x^2+y^2=36

∆red ≅ ∆ by rule will give brainiest if possible