Answer:7 is 433.5
9 is 104
10 is 165.92
Step-by-step explanation:
You would have to multiply all the numbers. 4 X 3, 4 X 2, 3 X 2, the answer I got was 36.
Answer:
0.136
Step-by-step explanation:
If you have a calculator with statistical functions, this problem is straightforward.
Use the normcdf function as follows:
normcdf(300,350,400,50) = 0.136
This result is the probability that a worker makes between $300 and $350 per week: 0.136
Using it's concept, it is found that the percentage of his sales that area food costs is of 29.62%.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

In this problem, he has $1643 out of $5546 in food, hence the percentage is given by:

More can be learned about percentages at brainly.com/question/10491646
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