Avery buys a sandwich for $7.69 and a soft drink for $2.75 how much more did the sandwich cost than the softdrink

What is the volume of the sphere shown below with a radius of 3?

Aquadratic equation in standard from is written ax^2= bx+c, where a, b and c are real numbers and a is not zero?

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.