The temperature of a city changed by -12 degrees celcius over a 2 week period. the temperature changed by the same about each week.

write an expression to show the average change in the temperature of the city each week.

simplify the expression and explain, using words, what your answer means.

Acable company claims that the average household pays $78 a month for a basic cable plan, but it could differ by as much as $20. write an absolute value inequality to determine the range of basic cable plan costs with this cable company. a. |x − 78| ≥ 20 b. |x − 20| ≥ 78 c. |x − 20| ≤ 78 d. |x − 78| ≤ 20