George wants to put carpeting in a rectangular living room and a square bedroom. the length and width of the living room is 12 feet by 18 feet one side of
the square bedroom is 13 feet it will cost 3.50$ per foot to carpet the rooms
a write an expression that can be used to find the total amount george will pay for carpeting
b evaluate the expression how much will george pay for carpeting

You will have to multiply 12*18*13 and you will get 2,808 feet then you will have to multiply 2,808 feet by 3.50 and you will get $9,828

The answer maybbe c

, and

for

step-by-step explanation:

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

1 the 1st term, 3 the 2nd term, 6 the 3rd term,etc.

note the following:

from the 1st term (1) to the 2nd term (3), we go up by 2,from the 2nd term (3) to the 3rd term (6), we go up by 3from the 3rd term (6) to the 4th term (10), we go up by 4, andfrom the 4th term (10) to the 5th term (15), we go up by 5.

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