Which expression(s) have positive values? Choose don't have to simplify)
1. [(-730)
2. [-(-73)
3. - (75)
4.-|-(-701

Having a hard time understanding this.
Even is positive and negative is odd?

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)