Math help plz!!!!?

[suhaiba m m]

youll get 10 points if u answer it right and getr the most ?'s!
Please show work!

1. What kind of line on a graph has a slope of 0. Horizontal or vertical.

2. xcubed -7xsquared+10x=0
(find roots of the polynomial)

3.. Describe the relationship b/w a pyramid and prism in terms of emptying a pyramid filled with water into a prism with the same base.

A. prism would be 1/3 full.
B. prism would be 2/3 full
C. pyramid would be 1/3 full
D.Pyramid would be 2/3 full
E. Pyramid would be empty and prism would be full.

4.simplify rational expression:
(xsquared+12x+32/xsquared +4x-5)/(x-2/5(x+25)
1. Factor 2. reciprocal..dividing...3. simplify...But im not sure if I got the right answer.

5. (8xsquaredysquaredz/xz3)-two (the -2 is negative squared)



Plz show work + answr whatevr u can. THX!!!