Step-by-step explanation:
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- Length of a park ( l ) = 55 m
- Breadth of a park ( b ) = 35 m
- Width running outside the park ( d ) = 2.5 m
- Rate of paving the path with stones = Rs 120 per sq.metre
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- Area of the park
- Cosy of paving the path with stones at Rs 130 per sq.metre
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Part 1 : 
plug the known values and simplify :
⟹ 
⟹ 
⟹ 
Part 2 : 
⟹ 
⟹
Hope I helped ! ♡
Have a wonderful day /night ツ
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Answer:
The correct answer is - an observational study.
Step-by-step explanation:
It is given that, Researchers periodically survey a few thousand of the patients. These are taking specific medicine patients and researchers taking this survey to find the connection between that medication and the subjects' general health.
So, it can say that the researchers observed the patient's health by the effect of the medication, therefore, the Observational Study is the given method of gathering data.
Pretend * is counter
* * *
* * *
the word problem could be in a box of chocolates there is 3 rows and 2 chocolates in each row how many chocolates are there total.
The first option and the third option are correct.
(Although, it's probably way too late now...)
