The probability of an event is 2 over 7, what must be the probability of its complement?

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36

3x = 729 solve for x plz . it's urgent. will mark