Diana has SX in her savings account today. She can make 9 annual deposits of $1600 starting in one year's time. She earns interest at 2% p.a. compounded half yearly. Diana's account balance will be $28800 in 9 years. Which of the following can be used to find the balance (X) of her bank account today? (There may be more than one correct answer. You will lose marks by choosing a wrong answer. The minimum mark for the question is zero.) Select one or more 1600 a. X. (1 + 0.01)18+ [(1 + 0.02) - 1) = 28800 0.02 1600 b. X + - [(1 + 0.0201)9 - 1] = 28800 0.0201 1600 OCX *(1 + 0.0201) + 0.0201 * [(1 + 0.0201) 1] = 28800 1600 d. X + . [1 - (1+0.0201) ) = 28800 0.0201 1600 o e X(1 +0.02) + [(1 + 0.02) - 1] = 28800 0.02 1600 [1 - (1 +0.0201)) = 28800 *(1 +0.01) 18 0.0201 f.X +