What is 4.3 convert into a fraction

For which rational expression is -2 an excluded value of x?

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

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