A checking account is overdrawn if it has a negative balance. Marc's account is overdrawn by $62. What will the balance be after he deposits $151 and writes a check for $86?
A -$175
B -$127
C $175
D $3

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?