PLZ HELP VERY EASY BRAINLIEST Identify a pair of mutually exclusive events and a pair of independent events.

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?

If on=8x-8,lm=7x+4,nm=x-5,and ol=3y-6

Betty correctly answers 30 questions on your math test there are 40 questions on the test what percent of the questions did she answered incorrectly