Laurie was scuba diving. Each time she dove 5 feet deeper, she would stop and clear her ears. Each time that this totaled 20 fee
t deeper, she would stop and check her instruments to make sure they were working properly. After Laurie had checked her instruments 3 times, she was at her maximum depth. Which expression best represents Laurie’s maximum depth? A: (4)(-5)(3)
B: (-4)(-5)(-3)
C: (-5)(20)(3)
D: (-5)(-20)(-3)
You could compute it based on the given information as (-20)(3). The next best choice is ... A: (4)(-5)(3)
_____ There is nothing in the problem statement that specfically says after 4 stops she checks her instruments. You have to figure that from -20/-5. That is why I would skip that step and go directly to (-20)(3).
