In each row, the 15 number of the student is arranged. For the given condition, the equal number of the student is to be arranged.
<h3>What is seating arrangement?</h3>
A seating arrangement is an arrangement shows that how the peoples are arranged so that the complete utilization is done.
The given data in the problem is;
The total no of student is 345 students
If the same number of the students are to be arranged for the given row, the following calculation is done;
The numbers of the student in each row is found as;

Hence, in each row, the 15 no of the student is arranged.
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Answer:
George by 3/8 of a foot
Step-by-step explanation:
The lottery's anticipated worth is $80.
Given that,
The probability of receiving $125 is 0.25; the likelihood of receiving $100 is 0.3; and the likelihood of receiving $50 is 0.45.
A) EV=125*.2+100*.3+50*.5=$80
The lottery's anticipated worth is $80.
The expected value is obtained by multiplying each result by its likelihood.
The expected value of the lottery is then calculated by adding up all of these.
This is what we have: ;;
125(0.2) + 100(0.3) + 50(0.5) (0.5)
= 25 + 30 + 25 = $80
B) This is the formula for variance is shown in figure :
So, we can calculate the variance as follows:
.2*(125-80)^2+.3*(100-80)^2+.5*(50-80)^2=975
C) A risk-neutral person would pay $80 or less to play the lottery.
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Whenever they ask what is a certain fraction of a number, just multiply.
(3/4)(535)=401.25
The sides
12-3a
12-3a
4(2a-5)=8a-40
so for perimeter we + them
(12-3a)+(12-3a)+(8a-40)
=
2a-16