Stephanie was going through a revolving door that needs to rotate 170° to allow her to pass through. She pushed the door around 150°, but then the door got stuck. Her friend helped her push the door another 15°, but it is still not open far enough. What is the measure of the additional angle that the door needs to turn before Stephanie can get out?

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Step-by-step explanation:

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exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.