Mrs. Robert is 3 times as old as har son The sum of their ages is 48 years. How
old was Mrs. Roberts when her son was born?

24

Step-by-step explanation:

3x+x=48

4x=48

x=48/4

x=12

Mrs. robert=3x=3*12=36

when her son was born she was =36-12=24

"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.