Which of the following is another way to express -13 - 7? 13 + (-7)
-13 + 7
-13 + (-7)
13 + 7

Explanation: When adding and subtracting positives and negatives,

if you have a minus sign in the problem, change it to plus a negative.

So -13 - 7 can be thought of as -13 + (-7).

Adding a negative is the same as subtracting a positive.

answer: an 8-foot rope is tied from the top of a pole to a

stake in the ground, as shown in the diagram

below

step-by-step explanation:

a reflection across the x axis and a 90 degree rotation left and right.