Violette intends to read a ^@240^@ page book within a specific period. She starts by reading ^@15^@ pages on the first day and increases her rate of reading by reading an extra ^@2^@ pages for each subsequent day. How long will she take to finish reading the book?
The points ^@ A(6,3)^@, ^@B(2,3)^@, ^@C(1,4)^@, and ^@D(0,4)^@ are the vertices of a parallelogram ^@ABCD.^@ If ^@AB^@ is the base, find the height of the parallelogram.
To warn ships for underwater rocks, a lighthouse throws a red colored light over a sector of angle ^@ 90^\circ ^@ to a distance of ^@ 4.9 \space km^@. Find the area of the sea over which the ships are warned. ^@ \bigg( ^@ Use ^@ \pi = \dfrac { 22 } { 7 } \bigg)^@
The perimeters of the ends of the frustum of a cone are ^@7.48 \space cm^@ and ^@10.56 \space cm^@. If the height of the frustum is ^@46 \space cm^@, find its curved surface area. (Take ^@\pi = \dfrac { 22 } { 7 }^@).
There are 5 pens belonging to 5 students. The pens were put into a box, and each student pulls out a pen one after the other. What is the probability that each student gets his or her own pen?
In this diagram, the triangle represents women, the square represents lawyers and the circle represents employed. Find the number of lawyers who are employed but not women.