I need to know which one is bigger the yellow or the red space. Also I need it in mathematical terms.

Rearrange the formula c^2 = a^2 + b^2 for b

Which of these choices show a pair of equivalent expressions?

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.