Lingyu is buying some snacks in the supermarket. A packet of Mamee cost $$30$$¢ less than a packet of Haribo. A big packet of jelly cost $$6$$ times as a packet of Mamee. If a packet of Haribo cost $$50$$¢, what is the cost of a big packet of jelly? \uline{Please give your answer in dollar.~}~ 
Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Complex Money Word Problems