The Houston Marathon is one of the largest marathon events of the year in Texas. In 2014, about 7,000 runners finished a 26.2-mile run around the downtown area of the city. One mile is approximately 1.61 kilometers. Which measurement is closest to the number of kilometers that are in the Houston Marathon? Round your answer to the nearest hundredth.

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

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.

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6