Answer:
47.5%
Step-by-step explanation:
39/82 = .475 = 47.5%
Answer:
their sizes vary
Step-by-step explanation:
their sizes vary
To find Jenny's age as a percentage of her great grandmother's age :

Answer:
(x,y) -> (-x,y)
Step-by-step explanation:
The image is flipped over the x axis.