问一道英文数学题,what is the present value of the following?$845 per

问一道英文数学题,what is the present value of the following?$845 per 原题：What is the present value of an infinite set of cash flow What is the relationship between present value and future va 一个英语数学题What is the value of the sum of a sequence of x conse what is the value of ab-abc? 问数学题（英文）which of the following sets of numbers has the great 问一道SAT数学题Which of the following integers,when rounded to the 请帮做一道数学题Of the following,whish is the greatest amount of mon 一道sat数学题!For which of the following pairs of numbers is the if 5 more than x is equal to 10,what is the value of SAT数学题, what is the value of 3+(-3) what is the value of (-10.4) + 1 又一道英文化学题..Which one of the following is not the same number