From previous problem: The monthly advertising revenue R{“ve…
From previous problem: The monthly advertising revenue R{“version”:”1.1″,”math”:”R”} and monthly circulation x{“version”:”1.1″,”math”:”x”} of a magazine are related approximately by the equation R=4×2-169{“version”:”1.1″,”math”:”R=4×2-169″}, where x≥13{“version”:”1.1″,”math”:”x≥13″} and R{“version”:”1.1″,”math”:”R”} is given in thousands of dollars and x{“version”:”1.1″,”math”:”x”} is measured in thousands of copies sold. Based on your answer to the previous question, at what rate is the advertising revenue changing if the current circulation is 20 thousand copies and the circulation is growing at a rate of 3 thousand copies per month? Round your answer to the nearest whole number. _______ Is the rate of advertising revenue increasing or decreasing? _______