Let x = Barbie's number
1/3 x -20 = 72
1/3 x = 92
x = 92*3=276
Answer:
20
Step-by-step explanation:
if you want a explanation ask for it :)
Assuming she set up the problem vertically, she began subtracting from the left, instead if the right.
Answer:
-5,-3,-1,1,3
Step-by-step explanation:
range= y
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