Use the properties of operations and rules for multiplying and dividing signed numbers to solve:

Answer 1

For this response, I will be using the following rules for multiplying and dividing signed numbers:

1. When multiplying or dividing two numbers with the same sign, the result is positive.
2. When multiplying or dividing two numbers with different signs, the result is negative.

Let's solve an example using these rules:

Problem: Solve -4 x (-5)

Solution: Since we have two negative numbers, we can apply rule #1. By multiplying -4 and -5, we get: -4 x -5 = 20.

Therefore, -4 x (-5) equals 20.

Here's another example:

Problem: Solve -9 ÷ (-3)

Solution: We have two negative numbers, so we can use rule #1. By dividing -9 by -3, we get: -9 ÷ -3 = 3.

Therefore, -9 ÷ (-3) equals 3.