the sale tax rate on groceries in a certain state is 9% if the price of a grocery item before sales tax is g dollars, which expression represents the cost of the grocery item including sales tax?

Step-by-step explanation:

g + 0.09g = the final price

multiplying 0.09(9/100) with g will give you the tax

then you add it up to get the final cost.

people went from manufacturing one object at a time by hand to manufacturing many objects in factories