The pressure of a gas p(v) varies inversely with the volume of the gas v. The pressure of a gas measures 15 kg/cm^2 when its volume is 300cm^2. Which equation can be used to find the pressure of the gas when the volume is changed?

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

What are the domain and range of the function f(x)=2^x+1

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field