After Elise deposits $21.75 into her bank account, her balance is $285.00. Which equation can be used to find the amount n in her account before she made the deposit?
Select one:
a. n + 285.00 = 21.75
b. n – 285.00 = 21.75
c. 21.75 + n = 285.00
d. 21.75 – n = 285.00