An 8.50 l tire contains .552 lol of gas at a temperature of 305 k. what's the pressure , in atm and in psi, of the gas in the tire?

PV=nRT
P×8.5=0.552×0.082×305
8.5P=13,80552

1. and 2. question: in which equation? or i don't understand you, 3. a), 4. c), 5. c), 6. b), 7. d), 8. d) if small number is underlined(behind symbol) , b) if big number is underlined(in front of symbol)9. what is underlined there? 10. c)