What is 8.64e9 in scientific notation?

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

Percent increase and decrease. original number: 45 new number: 18

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal