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Simplifying r = 0.003(80 * 80) + 0.07 * 80 + -0.027 Multiply 80 * 80 r = 0.003(6400) + 0.07 * 80 + -0.027 Multiply 0.003 * 6400 r = 19.2 + 0.07 * 80 + -0.027 Multiply 0.07 * 80 r = 19.2 + 5.6 + -0.027 Combine like terms: 19.2 + 5.6 = 24.8 r = 24.8 + -0.027 Combine like terms: 24.8 + -0.027 = 24.773 r = 24.773 Solving r = 24.773 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Simplifying r = 24.773
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