People use water to cook, clean, and drink every day. An estimate of 19.4% of the water used each day is for cleaning. If a family uses 67.9 gallons of water a day for cleaning, how many gallons do they use every day?

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.

You can find the constant of proportionality by finding the ratio of

If 3x+8=3x+8 is it one solution or no solution