Jasmine buys 21 cans of dog food. she gives 1/3 of the cans to her neighbor and she keeps the rest of the cans for her puppy. jasmines's puppy eats 4/7 of a can of food each day. how many days supply of dog food does jasmine have for her puppy?

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?