Answer: 

Step-by-step explanation:
Given : An operator of chocolate-packaging machine monitors the net weights of the packaged boxes by periodically weighing random samples of boxes.
The operator wishes to see if a random sample of 50 boxes gives evidence that the mean is different than 453 grams.
i.e. Claim : 
We know that the null hypothesis is a kind of claim which always takes equals sign but alternative hypothesis does not.
Thus , the null and alternative hypotheses for the given situation will be :-

The value of digit 9 in the number 2,107,954 is 900.
Answer: Choice 2) Multiplication property of equality
You multiply both sides by 1/6 to isolate x. This is the same as dividing both sides by 6.
Answer:
2/91.
Step-by-step explanation:
There are 15 marbles in the bag.
Prob(First draw is red) = 5/15 = 1/3.
Prob(Second draw is red) = 4/14 = 2/7.
Prob(Third draw is red) = 3/13.
So probability that all 3 are red = .1/3 * 2/7 * 3/13
= 6/273
= 2/91.
Answer:
$7.85
Step-by-step explanation:
given that price = $78.50
if sales tax percentage= 10% ,
amount she pays in taxes,
= sales tax percentage x price
= 10% x $78.50
= 0.1 x $78.50
= $7.85