The expression 8x2 − 144x + 864 is used to approximate a small town's population in thousands from 1998 to 2018, where x represents the number of years since 1998. Choose the equivalent expression that is most useful for finding the year where the population was at a minimum.
8(x2 − 18x + 108)

8(x2 − 18x) + 108

8(x − 9)2 − 216

8(x − 9)2 + 216

The answer to your question is the first one

Step-by-step explanation:

Data

Expression               8x² - 144x + 864

8(x² − 18x + 108)      This expression is correct because is factoring common terms. The common factor is 8.

8(x² − 18x) + 108       This option is wrong because 108 must by multiply by 8.

8(x − 9)² − 216           This option is incorrect because the first two terms is not

                                  a difference of squares.

8(x − 9)² + 216          This option is also wrong is a mistake the factor only the

                                   first two terms.

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.

answer: 88

step-by-step explanation: