A shopkeeper allows a 10% discount and still gains 10%. What is the cost price of a book which is marked at ₹220

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

Can you divide 25 into 4 equal groups? explain why or why not.