application to the principal for regular opening library

The principal cereal crop of India is

Name the principal ore of aluminium.

Define superposition principal ?

Prove that the interior angle of a regular pentagon is three times the exterior angle of a regular decagon.

The principal axis in radial symmetry is

The principal function of Golgi apparatus is

Mention the applications of beats,

Write the principal of hydraulic press. Also give its application.

A big-scores TV is on sale at 15% off the regular price. If the regular price of the TV is $420, what is the sale price?

The interior angle of a n sided regular polygon is 48^(@) more than the interior angle of a regular hexagon. Find n.