Find the equation of the line with slope =8 and passing through (3,21) write your equation in the form y=Mx+b

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.

How do you find the circumfrance of a circle?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?