Suppose a company has several hundred sales people on its staff nationwide. last year, the total annual sales per salesperson was normally distributed with a mean of $550,000 and a standard deviation of $35,000. if your friend was a sales man for this company, and his sales total for the year was -0.9 standard deviations below the mean. how much did he sell?

50 points! antonio made a scale model of a building. the model's scale is 1 inch to 235 feet and its height is 3.5 inches. what is the exact height of the actual building? enter your answer in the box.

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Find the number of liters in 12.8 gal of gasoline. round to the nearest hundredths