What is the area of a circle with a radius of 9 cm? (Express your answer using π.)

A.

81π cm2

B.

18π cm2

C.

324π cm2

D.

9π cm2

Yesterday, Nancy's lunch cost $9.80, and she left a $1.47 tip. Today, Nancy's lunch cost $12.60. If she tips at the same rate that she did yesterday, how much of a tip should Nancy leave? Can you solve it?!

What simbol makes the statement true (=) for the problem 7.63 and 7.629?

Which absolute value statement describes 9 degrees below zero?

Helene invested a total of $1000 in two simple-interest bank accounts. one account paid 5% annual interest; the other paid 6% annual interest. the total amount of interest she earned after 1 year was $58. find the amount invested in each account.

Damon plans to buy a snowboard that cost $160. Damon has $40. He will save $20 each week until he has enough to buy the snowboard. Let x represent the number of weeks it will take for Damon to save the money he needs

What is the similarity ratio of smaller to the larger similar pyramids v=343 and v=1331

How far is the director if he hears the drumbeat in 0.40 seconds? The speed of sound is 330 m/s

Which statement correctly describes dependent events? Two events are dependent if they have no outcomes in common and cannot occur at the same time. O Two events are dependent if they have outcomes in common and can occur at the same time.

It's lunchtime and Brad is looking in the kitchen for something to eat. Which could be considered a need for Brad?

f (x) = |x| and g (x) = |x| + 3 The translation applied to get the graph of g (x) from the graph of f (x) is.