We let x be the low temperature (in degrees Fahrenheit). A temperature that is 24 degrees Fahrenheit higher than this is 92. The equation that would best represent the scenario is,
92 = x + 24
The value of x from the equation is 68. Therefore, the low temperature is 68 degrees Fahrenheit.
The answer is 8% because each rate (2%) goes up $200, making $1200 at 6% into $1800 at 8%.
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