In the context of elavation what would -7 mean

The pressure exerted on the walls of a container by a gas enclosed within it is directly proportional to the temperature of the gas. if the pressure is 6 pounds per square inch when the temperature is find the pressure exerted when the temperature of the gas is 380 degrees f show work for the

Write an equation in point-slope form for the line through the given point that has the given slope (-2,-7); m=-3/2

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.