Each week, carrie works 40 hours. she spends 15% of her time at the register, 30% of her time greeting customers, and the remainder of the time performing maintenance duties. what percentage of carrie's time is spent performing maintenance duties?

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?

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers