4(-2d-3)=12, someone solve this for me asap

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.