The life expectancy of a circulating coin is 30 years. The life expectancy of a circulating dollar bill is only 1/20
money
as long. Find the life expectancy of circulating paper

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.