Tammy has a weekly limit of minutes on her cell phone. So far this week, she has used her cell phone for 84 minutes, which is 50% of her weekly limit. What is her weekly limit in minutes?

168 minutes

Step-by-step explanation:

50% is equal to .5 which is half. So if 84 minutes is half her weekly limit then she double that number to find her weekly limit, which is 168 minutes.

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.