Find the sum S = 1 + 3 + 5 + · · · + 13 + 15 = X 7
n=1
(2n + 1) by doing the following:
Copy down the series S in increasing order.
Underneath this, write the series S in decreasing order.
Add the two lines by adding the pairs of numbers in each column.
Simplify the result. [Hint: Determine how many terms are being added together
on the right hand side.]
Solve for S.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

there is no graph so i cant sorry

step-by-step explanation: