To which set or sets does -18 belong to?

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.

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Which of the following are accepted without proof in a logical system? check all that apply.