One number is six less than a second number. The sum of twice the larger number and six times the smaller number is 28. Find the two numbers.

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?

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?