Which function shows the greater rate of change over the interval

Anyone know? will mark brainliest if correct

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length