Which letter below is not made only of line segments?
1. f
2. m
3. d
4. x

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

The surface area of the triangular prism is .