6 3/4=6*4+3/4=24+3/4=27/4
z/12=27/4
4z=27*12
4z=324
z=81
Answer:
probability that the child DOES NOT play the piano

Step-by-step explanation:
A students' choir contains 25 children
n(S) =25
The number of students play the piano =5
Let 'E' be the event of the child play the piano so n(E) =5
The probability of that the child play the piano


Let 'E⁻ be the event of the child play does not play the piano


<u>Conclusion</u>:-
probability that the child DOES NOT play the piano

I believe that this is known as transaction costs since the definition of this is
the cost of going into another market
Answer:
<h2>total no of markers :36</h2>
in first condition
<h2>no of blue marksers :4</h2>
so probability:

same goes to the second condition
<h2>
<em><u>hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u> you</u></em><em><u><</u></em><em><u>3</u></em></h2>
60 degrees
Right angles add up to 90 so 90-30=60