It takes 7.21 1019 J of energy to remove an electron from an iron atom. What is the maximum wavelength of light that can do this

Which equation represents a graph with a vertex at (1, -6)?A. y=3x2+6x3B. y=3x2-6x-3C. y=3x2-8x-1D. y=3x2-3x-6 16 is what percent of 20? b -2 = 9/b-2 Answer ? La Distribuidora Industrial Dulzura va a seleccionar entre dos compaas para transportar su azcar al mercado. La primera compaa cobra 49,430.00 por alquilar los camiones ms 2,480.50 adicionales por cada tonelada de azcar. La segunda compaa cobra 60,500.00 por alquilar los camiones ms 1,927.20 adicionales por cada tonelada de azcar. 22.Which of the following contributed to the economic growth of the 19th century South?a rail network that connected major southern citiesnavigable rivers for transporting manufactured goodssuitable soil for planting and cultivating cottona skilled workforce that built canals and roads someone answer please:)I think its saying to find out what a means A 29-year-old female complains of a sore throat and runny nose for 3 days. Today she notes she is having difficulty breathing due to frequent and severe coughing spells. She is alert and oriented, and her vital signs are P 84, R 20, BP 122/80. Given her symptoms, you should suspect: What is the answer I need help pls Hello, can someone please help me as soon as possible? It will me appreciated greatly and I will mark brainliest. Which microscope is used to check organelles of human cheek cell? En mi ninez, me gustaba el futbol y yo______, en la Calle. please if you don't know don't answer 1. y = 5x + 2, (2,7) Which expression is equivalent to 15x + 3? 15(1x + 1) 5(3x + 1) 3(5x + 1) 2(15x + 3) Geometry Question:Find the value of x that makes N the incenter of the triangle (See attached) Which of the tables represents a function?Table AInput Output5 35 24 1Table BInput Output1 23 25 3Table CInput Output0 01 21 3Table DInput Output4 24 34 4 Table A Table B Table C Table D Convert the Following: 5.4 oz=__________ mg What should you do if the chest does not rise with each breath? A. Reopen the airway and try again B. Blow harder C. Stop rescue breath attempts D. None of the above Any advice/message to all the people about toxicity? I dont understand so please HELPPPPPPPPPPPPPP