问题详情

Brand R coffee costs $3. 25 per pound and brand T coffee costs $ 2. 50 per pound.
Column A Column B
The number of pounds of brand R in a 1. 2
mixture of brands R and T that costs
$3. 00 per pound
A．if the quantity in Column A is greater
B．if the quantity in Column B is greater
C．if the two quantity are equal
D．if the relationship cannot be determined from the information given请帮忙给出正确答案和分析，谢谢！