if 11% is lost on books sold at 10.68 rs what was the cost price of the books, at what price should they be sold at to yield a profit of 10%​

Astudent simplified a rational expression as shown.

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

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