The half life of pb-210 is 22 years. a decayed animal shows 48% of the original pb-210 remains; how long has the animal been deceased to the nearest tenth of a year?

"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.