Question

solve the question number 2
give me answer quickly​

Answer 1

3rd opition

15 is the answer for the 2nd question

Answer 2

2. (a) 10

Step-by-step explanation:

$Mean = \frac{5x+5+17+3x+2x+12+6}{7} = 20 \\ \frac{40 + 10x}{7} = 20 \\ 40 + 10x = 140 \\ 10x = 140 - 40 \\ x = \frac{100}{10} \\ x = 10$

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