Answer:
8x+16
7x-9
_____
15x+7
Step-by-step explanation:
Add or subtract like terms
i think 4
sorryif its wrong
The weights within this range are:
8.9
9.5
9.8
10.4
The graph represents the normal distribution with a mean of 9.5 and a standard deviation of 0.5. Therefore, the range of the values within 2 standard deviations is:
9.5 - 2(0.5) ≤ x ≤ 9.5 + 2(0.5)
8.5 ≤ x ≤ 10.5