Help please<333 with an explanation <333 :]]]

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?

Hi, can anyone show me how to do this problem? 100 points for this. in advance

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i