Is mno=pqr if so name the congruence postulate that applies

Which function has the same domain as y=2x

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !