How many pen?
There are three pen
How much is it?
It's twenty dollars and twenty cents
How much is it?
It's 5 dollars
How many books?
There are seven books
How many books?
There are two books
How many bikes?
There is one bike
How much is it?
It's ten dollars
How much is it?
It's twelve dollars and seventy-five cents
How many chairs
There are two chairs
How many tents?
There are two tents
How much is it?
It's forty five dollars and fifty cents