Please answer all my parts please

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need