How many french fries can I buy from a fast food restaurant without getting kicked out?

What type of reaction fuels the processes seen here?

Which samples do the atoms have the least kinetic energy

If you used the method of initial rates to obtain the order for no2, predict what reaction rates you would measure in the beginning of the reaction for initial concentrations of 0.200 m, 0.100 m, & 0.050 m no2.