165+172=337
172/337 is the experimental probability of tails.
Hope this helps!
Answer:

Step-by-step explanation:
Using the Quotient rule:

We can subtract the exponents of x and y:

Therefore, 
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Answer:
Step-by-step explanation:
7x+3
Answer:
x = 7
42, 35, 7
Step-by-step explanation:
- EG = 5x+7
- EF = 5x
- FG = 2x-7
Point F is on line segment of EG, therefore EG = EF + FG
- 5x + 7 = 5x + 2x - 7
- 2x = 14
- x = 7
Then
- EG = 5*7 + 7 = 42
- EF = 5*7 = 35
- FG = 2*7 - 7 = 7