Here are the four numbers. Keep them in this order:
18 2 4 3

Here are the tools in your toolbox:
parentheses, exponents (squared and cubed), multiplying, dividing, adding and subtracting.

Using the tools above, insert them between the numbers above to create the given values. Operations
may be used twice if necessary. Not all operations will be used in each expression.

Here is an example:
10 = 18 2 + 4-3

Listed below are the values you need to create
21 =
67 =
-6 =
103 =

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel