Transversal t cuts parallel lines r and s. which angles must be congruent to < 2?

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 the given system of equations. 2y= -x+9 , 3x-6= -15

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way