Marna's utility bills over the last year have a mean of $89.10 and a standard deviation of $5.13 . This month her bill has a of 1.65 How much was her utility bill? A.$97.56
B.80.64
C.94.23
D.83.97

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