If a = -37 mod 7 and b = 37 mod 7, what is the value of a + b?Select one:a.4b.7c.None of the othersd.0e.2

First, let's understand what the question is asking. The "mod" operation gives the remainder when the first number is divided by the second. So, "a = -37 mod 7" means that when -37 is divided by 7, the remainder is a. Similarly, "b = 37 mod 7" means that when 37 is divided by 7, the remainder is b.

Step 1: Calculate a = -37 mod 7 When -37 is divided by 7, the remainder is -2. This is because -37 = -6*7 - 2. So, a = -2.

Step 2: Calculate b = 37 mod 7 When 37 is divided by 7, the remainder is 2. This is because 37 = 5*7 + 2. So, b = 2.

Step 3: Calculate a + b Now that we know a = -2 and b = 2, we can add them together to get a + b = -2 + 2 = 0.

So, the answer is d. 0.