9. Bob is building a shelf. He wants it to fit into a space that's 20 feet long. The 20 feet of the shelf will be split into sections. The first section of the shelf is to be 5 feet, and the
other sections shall be 3 feet long each. How many sections will there be in the shelf?

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