What about the actions of these men exemplifies them as Hemingway heroes?
They talk about the oncoming attack, clearly with a deep sense of worry for their own safety and the safety of others.
They have not yet lived through a battle and are naive about the imminent danger that awaits them.
They have the bond only men in battle can share, and this is related by the way they partake of the cigarettes.
They act casually and go about regular business, such as smoking, while actually in grave danger.

They act casually and go about regular business, such as smoking, while actually in grave danger.

Explanation:

The action of this men the considered or exemplifies them as Hemingway's hero is

that they act casually and go about regular business, such as smoking, while they are actually in grave danger

Hemingway's exemplifies a man involved in a great deal of drinking, moved from one love affair to another, participated in wild game hunting, who enjoyed bullfights, who was involved in all of the so-called manly activities which the typical American male did not participate in as hero . His hero are men who participate in this even though they're actually in danger.

For instance, in A Farewell to Arms, when in the midst of the battle Frederick Henry and his two ambulance drivers sit down in the middle of the battlefield amid all of the destruction and thoroughly devote themselves to relishing, enjoying, savoring every taste of their macaroni, cheese, and bottle of mediocre wine.

Hemingway's concept is that "when you are dead, you are dead." Nothing more. So if a man cannot accept a life or reward after death, then emphasis must be on doing or performing something in this particular life. If death ends all activity, if death ends all knowledge and consciousness, man must seek his reward here, now, immediately. So, the Hemingway hero will devote himself to all types of physical pleasures because these are the rewards of this life not withstanding being in grave danger should go their regular life and enjoy the pleasures of life.

recommended becuase why did he read the book? becuase it was recommended

a line graph will be best to show the income.