Acard was selected at random from a standard deck of cards. the suit of the card was recorded, and then the card was put back in the deck. the table shows the results after 40 trials.

what is the relative frequency of selecting a club?

17%

20%

25%

30%
outcome club diamond heart spade
number of trials 8 12 11 9

What is the product? (x2+3y+7) [yy+1)

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?

The sum of two numbers is 86, and their difference is 20. find the two numbers