Answer:
8 + 18+ 28+ 38+ 48= 140
Step-by-step explanation:
C=2
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r
A=
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r<span>²
C=2</span>
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r=58
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2r=58
r=29
A=
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r<span>²
A=29</span><span>²</span>
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A=841
10)

11)

12)

13) (your answer is incorrect)

14) (your answer is incorrect)

15)

16)
-expression to represent this situation

Answer: In 1 group 57 students
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
P.S. Hello from Russia :^)

First, I would multiply the last two fractions because they're smaller and easier to work with:

Now that we've simplified it, we could multiply these terms and simplify. An easier method, however, would be to cancel out any common factors among the numerators and denominators before multiplying:

We can now multiply these terms:

The <span>product of 8/15, 6/5, and 1/3 is B, 16/75.</span>
Answer:
x= 30/7
Step-by-step explanation:
See image below:)