Which is greater? -5.7 or -5 2/5

What could explain what happened when the time was equal to 120 minutes

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?

If a line is defined by the equation y = 5x + 2, what is the slope?