The table shows the number of minutes per day students spend outside of school reading and doing their math homework.
Number of minutes reading
15, 15, 15, 20, 30, 30, 30, 30, 45, 60
Number of minutes doing math homework
25, 30, 30, 30, 30, 40, 45, 45, 55, 60
What is the difference of the means as a multiple of the approximate mean absolute deviations?
Enter the correct answer in the box.

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?

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

Is the number 128.439 a rational number