Why is there no beginning or end to the rock cycle?

Solve |2x - 5| = 4 if anyone could , that would be great

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

The radius of the circle is 4 cm and the measure of the central angle is 90° the area of the sector with a central angle measuring 90° and radius of length 4 cm is vt cm the triangle in the sector is 4 cm the area of the triangle is v/cm² the area of the segment of the circle is (471 - ) cm?