Mrs. sing invests $12,876 for her business at an annual interest rate of 7 percent for 3 years. which number will mrs. sing substitute for r in the simple interest formula?

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

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