2. A red ribbon is 41m long and a blue ribbon is 97m long
What is the total length of the ribbons?
s​

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.

Math it's appreciated. (picture provided)

Which graph has a rate of change of zero