William put $100 in a bank account last year. now he has more money in the account. which expressions represent how much money william has in his bank account now? choose all answers that are correct.

a. $100 - (1/12 * $100)

b. $100 + (1/12 * $100)

c. $100 + (13/12 * $100)

d. 13/12 * $100

i think b. and d. are correct because they are both equal. could someone me understand this, and tell if i'm right or wrong? ! < 3