Use rounding to estimate the sum or difference. then match the
problem with the correct estimate.
1. 7.3 + 4.96 a. 13
2. 18.7 - 5.9 b. 12
3. 12.10 +3.81 c. 11
4 11.91 – 1.38 d. 16
(example
just but 1: a)

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