Arectangular swimming pool has a length of 30 feet and a width of 12 feet. The pool is filled to a depth of 4 feet with water. What is the volume, in cubic feet, of the water in the swimming pool?

i'm not sure i quite understand, could you provide more information?

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step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

the answer is c 150

step-by-step explanation: