Adam borrowed $5,600 from the bank. The bank charges 4.2% simple interest each year. Which equation represents the amount of money in dollars, x, Adam will owe in one year, if no payments are made?

x=5,600+5,600(42)(12)
x=5,600+5,600(0.042)(1)
x=5,600+5,600(42)(1)
x=5,600+5,600(0.042)(12)