What’s the answer and how would i solve this ?

The amount of energy it takes to lift a box might be a function of which of the following

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.

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.