if george's mom needs 3 kilograms of sliced cheese fo a family party. how many packages will she need to buy

Evaluate the following expression 1/3^2

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.