How do you determine where f(x)=cos^(-1)(lnx) is continuous?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

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.

Ineed to know the answer to this algebra question.