Answer:
mother=m
e=emily
m=4e
m+6=3(e+6)
substitute the first equation into the second.
4e+6=3(e+6)
4e+6=3e+18
4e=3e+12
e=12
Emily is currently 12 years old.
12 years old.
Step-by-step explanation:
B
Out of the 4 options, we only need 1. Therefore, the probability is
no because the x value -2 has two corasponding y values
(1, 1), (2, 4), (3, 9), (4, 16)
You recognize that, of the numbers in Y, 20 is not a square. You also recognize that the remaining values of Y correspond to the squares of the values of X:
(x, x^2) = {(1, 1), (2, 4), (3, 9), (4, 16)}