Final answer:
Amy will have to wait for 10 months before she has saved enough money to pay for her laptop in cash.
Step-by-step explanation:
To calculate how long Amy will have to wait before she has saved enough money to pay for her laptop purchase in cash, we need to divide the total cost of the laptop by the amount she can save each month:
Time = Total cost / Monthly savings
Time = $599 / $60 = 9.9833 months
Since we can't have a fraction of a month, we round up to the nearest whole month. Therefore, Amy will have to wait for 10 months before she has saved enough money to pay for her laptop in cash.
Learn more about saving money for a purchase