Just use a bucket or a towel to handle the water that leaks out. 1  Locate the large nut that connects the sink to the drain and disconnect it. 2  Remove the current sink by sliding the edge of a putty knife around the perimeter of the bathroom sink, loosening any caulk that connects it.
In the United States, pre-algebra is usually taught in the 7th grade. The objective of pre-algebra is to prepare the student for the study of algebra. Pre-algebra may include subjects from geometry, especially subjects that further understanding of algebra in applications to area and volume.
In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols;[2] it is a unifying thread of almost all of mathematics.[3] As such, it includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields.