What numbers might encourage a Texas cowboy to re-up for another cattle drive? Explain. please help

porter is writing economic history because he is focusing on the cost of developing vaccines.

frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. but frederick disliked rifle shooting and horseback riding. unlike his father, he was interested in french literature. he enjoyed poetry and music and, like some others of the enlightenment, he scoffed at religion. his father thought him soft, frivolous and unmindful of his duties. and when frederick refused to put his signature on a right to succession, for a few moments his father strangled him.

i dont know the answer sorry but if i knew it i would of told you