Which one of the following steps could be used as a shortcut method to multiply 12 by 50?
a.) multiply 12 by 5 then multiply that result by 100
b.) divide 12 by 2, then multiply that result by 50
c.) multiply 12 by 100, then divide that result by 2
d.) add 12 and 50, then multiply that result by 10

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.

What is the slope of the equation y =

What is the graph of the function fx x+2/x-3?