###Human: For every sandwich that he eats, Sam eats four apples. If he eats 10 sandwiches every day for one week, how many apples does he eat?, ### Assistant: Ten sandwiches every day for one week is 7*10 = 70 sandwiches.
For every sandwich that Sam eats, he eats four apples, and since he ate 70 sandwiches, he ate 70*4 =280 apples. 
 So the answer is :  280