The diameter of the bottom of a lamp shade is twice the diameter of the top of the lamp shade. the top of the lamp shade has a 9-inch diameter. what’s the circumference of the bottom of the lamp shade? (hint: find the diameter of the bottom of the shade, then the circumference.)

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6

Can someone me and explain..will award brainlest!