A. the quantity in Column A is greater
B. the quantity in Column B is greater
C. the two quantities are equal
D. the relationship cannot be determined from the information given
【例 1】L, M, N are both real numbers
and L>N, M>N
【例 2】The market value of a product decreased by 10 percent of its purchase
price each month. If the product was purchased in January for its market value
of $1,000, what was its market value two months later?
【例 3】 Which of the following equations can be used to find the value of x if
5 less than 3x is 6 more than the product of 2 and x?