Find an expression which represents the sum of (-2x+7y)and (-6x+7y) in simplest terms.

Name the most appropriate metric unit for each measurement like a length of an carrot

Brainlest answer can you find the area and circumference of a circle given the radius or diameter? if its yes or no explain why

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.