\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

Hundreds of students at Apalachee Elementary School were treated to free books to start the new week. The school is the second of three Title I schools in Leon County to hold a book fair as part ...