Me ! tell me if 11,12 are right and w/ 13

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

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?

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?