I need the answer ASAP

Answer:
16
Step-by-step explanation:
Since Dean bought 8 postcards during 2 days of vacation, then after 4 days, that would be 16 because multiply by 2.
Answer:
16 postcards
Step-by-step explanation:
So Dean's rate of buying is:
8 postcards/2 days = 4 postcards per day.
Thus, we can find out how many postcards he gets after 4 days by multiplying
4 postcards × 4 days, which equals to 16 postcards.
Hope this is helpful!