Can someone explain to me how to answer this question? Thank you!

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.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer

Which of the following circles have their centers on the x-axis? check all that apply.