The exchange rate between the US dollar and the Nigerian naira fluctuates constantly. To determine how much 75 dollars is in naira, one needs to check the current exchange rate.
Banks and financial institutions usually offer different exchange rates. Online currency converters can also be used as a reference. These converters take into account the latest market rates.
However, it's important to note that the actual amount received when converting the 75 dollars Amazon card to naira might vary slightly due to fees and margins applied by the conversion service. So, it's advisable to compare rates from multiple sources to get the best possible conversion value.