If two supplementary angles have measures of 9x and 3x, what is the measure of the longer angle

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days