13. Usain Bolt is able to run 300 meters in 51 seconds. How fast is Usain's running per second? *
1 second/6.2 meters
about 6.2 meters/second
about 7.1 meters/second
about 5.9 meters/second
Other:

Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

What is the frequency of the sinusoidal graph?