Th total capacity of 6 pitchers and 12 glasses is 21 liters. the capacity of a pitcher is 5 times that of a glass. find the capacity of each glass. give you answer in liters.

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

Is this a polynomial function? i need to know asap

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15