Question

(i) A number is divided into two parts, one part being 4 times the other. The difference between the two parts is 15.What is the number?
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Answer 1

Answer:

the smallest unit that can live on its own and that makes up all living organisms and the tissues of the body. A cell has three main parts: the cell membrane, the nucleus, and the cytoplasm. ... Parts of a cell. A cell is surrounded by a membrane, which has receptors on the surface.