1.Before being simplified, the instructions for computing income tax in Country R were to add 2 percent of one's annual income to the average(arithmetic mean) of 100 units of Country R's currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in Country R's currency, for a person in that country whose annual income is A? 我觉得此题有问题啊,他说before being simplified, 算出来的是c没错。可是他问的是,simplified formula,那其实就是已经after simplify了。 那怎么还是c 啊。此题根本没有涉及,after simplify以后和before simplify的关系啊!!困惑!!