98. What is the sum of the first 27 terms in the arithmetic series 25 +19+13 + ...?

sum of the first 27 terms = -1431

Step-by-step explanation:

n = 27 terms

first term, a = 25

common difference, d = 19 - 25 = -6

substitute the values into the formula

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: