Does anyone know how to do this worksheet for congruent triangles

Which expression is equivalent to the expression below? (6c^2 + 3c) / (-4c + 2) / (2c + 1) / (4c - 1)a. 3c(2c-1) / (2c + 1)b. -3c(2c-1)^2 / (2c + 1)^2c. 3cd. -3c(just took the test its d. -3c)

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why