1. Simplify: 3x + 8y - 2x + 5 + 3y

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?

What percent of 18 is 24? and plz explain thx.

Tanyss's house has 25 windows. her brother has washed 22 of the windows. what percent of the windows has her brother washed?