Find the value of x that makes the quadrilateral a parallelogram 2x+5=3x

Tell whatever the ordered pair is a solution of the given system.

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.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=