The answer is b because if you look there is no Direct variation
Answer:
A
Step-by-step explanation:
All pieces of data for seventh grade classes are larger than that of any kindergarten class on the table. This also proves with the mean provided.
The MAD, mean absolute deviation, helps you to identify the variation. The MAD for seventh grade was significantly larger than that of the kinder classes. The range for both sets of data is two times one another, further proving that 7th grade classes varies more.
C and D are irrelevant, and B says "varies less" which is the opposite of what's going on.
Hope that helps!
128
This question requires us to solve an infinite GP
As we can see the first unit is 16 wide, then 8, then 4 and so on; this can be written as

∞
(64 used as 16*4 = 64 is the area of the first rectangle)
We have
∞
where a is the first term and r is the common ratio of the GP for summing an infinite GP.
here we have

Therefore
∞
Learn more about GP here
brainly.com/question/16954106
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I don't get your question