3x+6=-3(2x+4)

Show your work

Average acceleration: i have no idea how to do this.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

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