哈密瓜每千克7.60元，菠萝每千克4.20元．妈妈买了一个哈密瓜重6.3千克和一个菠萝重1.2千克。共花多少元钱？+I,O-d3M'R*l'_5V8h-^
算式：提示9j4R6C+I,O-d3M'R*l'_5V8h-^
答：共花4X+P7d3r.n8T't5H6d8r;]0N元。+I,O-d3M'R*l'_5V8h-^