Five grams of sugar are added to a 40-gram serving of a breakfast cereal that is 10% sugar. what is the percent concentration of sugar in the resulting mixture?

Let w=23 . what is the value of w + 45 ?

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.

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1