The sum of two numbers is 55. the larger number is 15 more than the smaller number. what are the numbers?

Anyone know? will mark brainliest if you're correct!

How do you find the area of a triangle

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.