If your sample mean is 25, your population average is 5, and your standard error of the mean is 10, what is your observed z value?

What is the number that has 2 hundreds and the tens digit is 9 more than the ones digit?

What is equivalent to 1/81

A florist sold bouquets of red roses to 15 of the first 20 customers who came into his shop. What is the experimental probability how many bouquets of red roses should the florist express to sell on a day with 120 customers?

What is x in this equation W=2hx-11x

If K = (x, y), find the corresponding range of y for the domain {0, 2, 4}. {-5, - 3, - 1} {0, 2, 4} {5, 7, 9}

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.