Answer:

Step-by-step explanation:
Given data:
2, 5 , 7
The geometric mean is a measure of central tendency of a data set which utilizes the product of their values
To find the geometric mean of the given values;
- multiply them together
- find the square root;
Geometric mean =
Geometric mean = 
Answer:
B. 7.3 %
Step-by-step explanation:
Given:
Initial average grade = 82
Final average grade = 88
Duration for the increase = 3 weeks
Therefore, increase in average grade = Final - Initial = 88 - 82 = 6
Now, percent increase in average grade is given as:

Therefore, the percent increase in her average grade over the 3-week period is 7.3 %.
Answer:
1/3 renamed: 2/6 Mutiplies of denomonator 3,6,9,12,15,
4/9 renamed : 8/18 Mutiplies of denomonator 9,18,27,36
Step-by-step explanation:
I will help more in the comments sorry I couldn't read it all on here...
Answer:
87.5%
Step-by-step explanation:
7/8x100=87.5