This is probably really simple but they didn't word it right :(

Okay I don't get this:

http://i4.photobucket.com/albums/y10...ous/circle.jpg

The diagram above shows a flat surface containing a line and a circle with no points in common. Can you visualize moving the line and/ or circle so that they intersect at exactly one point? Two points? Three points? Explain each answer and illustrate each with an example when possible.

And...

$\displaystyle 3x/4=6/7$

And...

http://i4.photobucket.com/albums/y10...s/triangle.jpg

The perimeter (the sum of the side lengths) of the triangle above is 52 units. Write and solve an equation based on the information in the diagram. Use your solution for x to find the measures of each side of the triangle. Be sure to confirm that your answer is correct.

Please and thank you.