Help!! I have this for a test and im very confused

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.

Write and solve a real word problem that involves determining distance on a coordinate plane

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*