Does the point (4,-2) lie on the circle with a center at (4,0) and a radius of 2?

With #! i’ve tried to figure it out but i can’t.

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Drag statements and reasons to each row to show why the slope of the line between d and e is the same as the slope between e and f, given that triangles a and b are similar.