What is b=5.1m;c=12.3m

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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?

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?