Answer:
Javier’s account has $282.5 at the end of the three months.
Step-by-step explanation:
final = initial - 7.5x
initial is the initial amount of money in the account, so 305. x is the number of months that have passed. Since Javier doesn't deposit any more money durning that time, the amount in the bank will always be less than 500 we don't have to consider anything else. We just sub initial with 305 and x ( the number of months) with 3 to get the answer. So,
final = 305 - 7.5 * 3 = 282.5