Jonathan created a graph that shows the number of exercises he completes in his workout routine. On a coordinate plane, a graph titled Jonathon's Exercises has number of crunches on the x-axis and push-ups on the y-axis. Points (15, 2), (30, 4), and (45, 6) are plotted.

Which statement summarizes his exercise routine?
Jonathon does 3 crunches for every 2 push-ups.
Jonathon does 2 push-ups for every 3 crunches.
Jonathon does 2 push-ups for every 15 crunches.
Jonathon does 15 push-ups for every 2 crunches.

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.

Three times the sum of a number and seven is negative thirty-six. what is the number?

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).