Mathematics, 01.12.2020 16:50 nanagardiner08

To make a friendship bracelet, some long strings are lined up; then, one string is tied in a knot with each of the other strings to create a row of knots. A new string is chosen and knotted with the all the other strings to create a second row. This process is repeated until there are enough rows to make a bracelet to fit around your friend's wrist. Are the number of knots proportional to the number of rows? Explain your reasoning.

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To make a friendship bracelet, some long strings are lined up; then, one string is tied in a knot wi...