The table shows how the height of a stack of DVDs depends on the number of DVDs. What is a rule for the height?

Number of DVDs

Height (cm)

2

18

3

27

4

36

n

?

A. h = 9n

B. h = 8n

C. h = 2n

D. h = n/9

True or false the gcf of two numbers is equal to the number to the lesser of the nymbers.

Which expression means 63? A) 6 * 3 B) 6 * 6 * 6 C) 3 * 3 * 3 * 3 * 3 * 3 D) (2 * 3) * (2 * 3) * (2 * 3)

A coin is flipped four times, and the result is recorded for each flip. How many possible outcomes are there for the experiment?

In a baseball league consisting of 4 teams, each team plays each of the other teams four times. How many games will be played? Ha There will be games played

What is the value of 3 1/2 - 9 3/4

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.