Perfect cubes between 1000 and 6000

Mindy bought 5/8 pound of almonds and a 3/4 pound of walnuts.which pair of fraction cannot be used to find how many pounds of nuts she bought in all.

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i