To find the probability that the mom is at the front of the line:

Therefore the answer is 1/5.
Hope it helps!
Answer:
3x-15
Step-by-step explanation:
(x-10)+(x-5)+(x)=3x-15
Answer:
271 boxes
Step-by-step explanation:
Using the given information, the value of Σfd is 800
<h3>Calculating mean using Assumed mean </h3>
From the question, we are to determine the value of Σfd
The formula for mean, using the assumed mean method is given by

Where
is the mean
A is the assumed mean
From the given information,



Putting the parameters into the equation, we get





Hence, the value of Σfd is 800
Learn more on Mean here: brainly.com/question/20118982
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