Math question: Find the circumference of a circle with radius 5cm. What is the area of a rectangle with length 6cm and width 4cm? Calculate the area of a parallelogram with base 8cm and height 10cm.
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Find the value of x for f(x) = ln x such that f(x) = log x. (
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What is the equation of the exponential function that passes through the points (1, 4) and (2, 12)?