A shopkeeper bought 6 dozen pencils at $25 per dozen. He sold 2 dozen at $25 each and the remainder at $30 each. What was his percentage profit of the cost​

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).