Which describes this type of series? - 20 - 18 - 15 - 11 - ...

A. both arithmetic and geometric

B. neither arithmetic nor geometric

C. arithmetic

D. geometric

Find the geometric sequence. 4, 12, 36, 108, ...

The circumference of a circle is approximately 3.14 times the length of its diameter. Which inequality can be used to find all possible diameter lengths, d, if the circumference of a circle is more than 50 cm? 3.14 d less-than 50 3.

Find the cube number of 5

One gallon of propane yields approximately 91,500 BTU. About how many BTUs does the spherical storage tank shown provide? Round to the nearest million BTUs. ( Hint: 1ft3 ≈ 7.48gal)

At any given football game that Burbank plays, the probability that Patrick plays during the first half of the game is 5/6. he plays during the first half, there is only a 3/7 chance that he'll play again during the second half.

What are the x - and y-intercepts of 2x+4y=8

If the product of a number and - 8 is subtracted from the number the result is 7 more than the number find the number

1 At a chicken farm, 396 eggs must be packed into crates each day. Each crate is packed with 18 eggs. Today, the farm staff has already packed 10 crates. how many more crates of eggs (c) still need to be packed today?

The price of a jacket was increased from $140 to $168 what was the percent increase in the price of the jacket

12w - 27 = - 34 + 14w