I believe the answer is D)120
There were 215 students in soccer class.
Step-by-step explanation:
Given,
Number of students in tennis class = 129
2/3 of tennis class students = 
2/3 of tennis class students = 86
Number of soccer students = Number of tennis students + 2/3 of tennis students
Number of soccer students = 129+86
Number of soccer students = 215
There were 215 students in soccer class.
Keywords: fraction, addition
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<u>Complete Question</u>
The usher at a wedding asked each of the 80 guests whether they were a friend of the bride or of the groom. The results are: 59 for Bride, 50 for Groom, 30 for both. Find the probability that a randomly selected person from this sample was a friend of the bride OR of the groom.
Answer:
0.9875
Step-by-step explanation:
Total Number of Guests which forms the Sample Space, n(S)=80
Let the Event (a friend of the bride) =A
Let the Event (a friend of the groom) =B
n(A) =59
n(B)=50
Friends of both bride and groom, 
Therefore:

The number of Guests who was a friend of the bride OR of the groom = 79
Therefore:
The probability that a randomly selected person from this sample was a friend of the bride OR of the groom.

Answer:
The answer is 14.
Step-by-step explanation:
the reciprocal or opposite of 1/13 is 13/1 convert 13/1 to 13 + 1 ( plus 1 from the whole number) and get 14.
Circumference = 2πr
Our cylinder's circumference: 2 * π * 9 = 18π
Surface area of cross section = πr² = π * 9² = 81π
* 2 since there is two cross sections: 81π * 2 = 162π
Surface area of rounded face, treat it like a rectangle: C*H
18π * 11 = 198π
Add the surface areas, 198π + 162π = 360π in²