Four less than the product of 8 and a number equals 6

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

Find the value of x. round the length to the nearest tenth

See attachment below and find the equivalent of tan(∠qsr)