Answer:
0.72
Step-by-step explanation:
Well if Abby is twice the age of her bother and her brother is 9 then she is going to be 18 because 9x2=18, then it says that she is half her dads age so all you have to do is add 18+18 which equals 36
Answer:
D)
9 units
Step-by-step explanation:

Answer:
is that even the full answer because I don't know if that is
Answer:
$190.65 for 31 hours
Step-by-step explanation:
P= ha
123=20a
123/20=a
6.15=a
P=6.15h
P= 6.15(31)
p=190.65