A mile-runner's times for the mile are normally distributed with a mean of 4 min 3 sec. (This would have to be expressed in decimal minutes -- 4.05 minutes), and a standard
deviation of 2 seconds (0.0333333 minutes (the underline indicates a repeating decimal)).
What does the mean have to be for a 0.20 probability of the time being 4 minutes or less?

Marya wants to factor the polynomial 36x^3 -22x^2 - 144x.which term can she add to the polynomial that would not change its grestest common factor? check all that apply

Mexico city, mexico, is the world's second largest metropolis and is also one of its fastest-growing cities with a projected growth rate of 3.2% per year. its population in 1991 was 20,899,000 people. use the formula p = 20.899e0.032t to predict its population p in millions with t equal to the number of years after 1991. what is the predicted population to the nearest thousand of mexico city for the year 2010?

3382-299=3383- ? fill in the blank?