If i have 20 cookies and i take 10 away, how much do i have left

Anna had 495 dollars in savings then she worked x hours at $9 per hour. Write an expression for the total amount of money Anna has after she gets paid.

Equations to find the inverse of f (x) = y = 3x/8+z

A poll shows that 80% of voters in a city favor of building a new railway. If 22 selected at random, what is the probability exactly 7 of them will vote in favor of new railway? A. 20 B. 0 C. 80

Which of the following are examples of inferential statistics? Check all that apply. A. Finding the average (mean) of a set of numbers B. Testing every lightbulb produced by a company to confirm that each one works C.

Which equation represents the situation? the sum of three consecutive even integers is 24. x (x 4) (x 6) = 24 x (x 1) (x 2) = 24 x (x 2) (x 2) = 24 x (x 2) (x 4) = 24

If the probability that it rains tomorrow is 35%, what is the probability that it does NOT rain? A) 15% B) 35% C) 65% D) 75%

Find z↓0.755. (like a downward exponent) A -0.2266 B 0.2266 C -0.69 D 0.69

Francis has 6 chocolate bars. he gives one to John and one to Chester. he keeps the rest for him. what fraction of the chocolate bars did he give away?

To estimate the number of people in Springfield, population 10,000, who have a swimming pool in their backyard, 250 people were interviewed. Of those, 115 had a swimming pool.

Lee put $10,000 into a stock market index mutual fund that grew at an average of 7% per year for 10 years. About how much is in Lee's mutual fund account after 10 years? Ignore compounding.