Final answer:
Mary could buy a maximum of 98 magazines with $395.
Step-by-step explanation:
To find the total amount Mary spent on magazine subscriptions, we need to know the price of each magazine and the number of magazines she bought. The price of each magazine is given as $4. Although the number of magazines is not mentioned in the question, we can find it by dividing the total amount she spent by the price of each magazine. So, if Mary spent $395 on magazines and the price of each magazine is $4, the number of magazines she bought can be found by dividing $395 by $4:
Number of magazines = $395 / $4 = 98.75.
Since the number of magazines needs to be a whole number, Mary could buy a maximum of 98 magazines with $395.