What is the difference (9*) in scientific notation

Me d is also an option but i couldn't get it in the picture

‼️‼️‼️‼️‼️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 440 f, find the pressure exerted when the temperature of the gas is 380°f. (show work)

Show all work to identify the discontinuity and zero of the function f of x equals 6 x over quantity x squared minus 36