Answer:
Step-by-step explanation:
78 - 45 = 33
Since it’s half a number you do
33 x 2 = 66
So the answer is 66
Unbiased. If it was biased then she would only choose people she wanted to answer her survey. It is unbiased because she is asking the first 10 random people who walk into her shop.
Answer:
225
Step-by-step explanation:
Four dollar loss and four dollar profit cause its like -4 + 4 = 0