What is the fraction of 3\4 of 28

What is the length of bc ? enter your answer in the box. bc =

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.

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)