I need this done today whoever gets this correct gets brainliest

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

The ksp expression for the system pbcl2(s) pb+2(aq) + 2 cl-(aq) is: [pbc12][pb+2][2cl-] [pb+2][cl-]2 [pb+2][2cl-]2 [pbcl2][pb+2][cl-]2 [pb+2][2cl-]2[pbcl2]