My shop floor plan in square grid 6 × 4 and im installing a security camera on ceiling upper right hand corner that rotates 360 degrees. what percentage of room will be hidden from camera?

Avegetable garden and a surrounding path are shaped like a square together are 12 ft wide. the path is 1 feet wide. if one bag of gravel covers 8 square feet, how manu bags are needed to cover the path? round your answers to the nearest tenth.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?