Someone plz help me! Xx

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?

Ineed if you could explain and give me the answer you! this needs done

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?