It takes dave's dogs about 20 days to finish a 50-pound bag bag of dog food. which is the best estimate of number of pounds of dog food dave's dogs eat in one year
a)400
b)750
c)900
d)150

The correct answer is C) 900

To begin with, you need to divide the number of days in a year with the number of dogs. When you do this, you multiply it by 50 to get the final answer. In this case, it would be 365 / 20 which when multiplied by 50 gives the number of C) 900 since it's "about" 20 days.