What is the product? One-fourth times three and two-thirds

A. 1/2
B. 7/12
C. 3/4
D. 11/12

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 solve a question like this?

What is the total area of the figure?