Jack unfolded a cardboard box. the figure of the unfolded box is shown below:

which expression can be used to calculate the area of cardboard, in square inches, that was used to make the box?

a.8 x 6 x 6
b.6 x 4 x 4
c.4 x 6 x 6
d.6 x 8 x 8

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?