Answer:
I dont know much but she will get 10 yards per 10 seconds
Step-by-step explanation:
9 years.
Make x the number of years passed.
12 + 4x = 39 + x
27 = 3x
x = 9
A. First equation by -2
if you multiply the first equation by -2, the -4y cancels 4y
im sry but i have no idea
idek
fr