Given ab use a construction and a transformation to make a conjecture about the points that lie along a perpendicular bisector

Which expressions are equivalent to -6 + 3m

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

For each proportion find the unknown number x 1/5/8=×/15