A petroleum refinery needs to empty a spherical storage tank of radius 9 m. The contents will be
transferred to cylindrical tanks of radius 4 m and height 20 m. What is the minimum number of cylindrical
tanks that must be available in order to empty the entire spherical tank?

Find the area of a square with a side length of 1/4 in.

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total