these question i dun understand.. and i dunno how to do.. can some 1 help plz.. question.. 2,3,4,5
2aOriginally Posted by xiaoz
multiply top and bottom by :
2b The cost of dinner is the price of the food plus a 4% service charge.
A diner paid $93.60, what was the price of the food?
Let be the price of the food, then the diner pays: