There were 160 athletes at the meet.
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For these problems you have to use PEMDAS so for problem 15 you would do the parentheses first, (21-3) you get 18 and then exponents, 3^2, you get 9, no multiplication but there is division so take your answers, 18 and 9 and divide them, you get 2, so the answer to 15 is 2.
42.105263157895 I hope this is the what u wanted
Answer:
14/61 cm per day
Step-by-step explanation:
Use the slope formula
Plug it in 
Simplify 
Answer:
Following are the solution to this question:
Step-by-step explanation:
Just Parts (c) were discussed because they were mentioned in the issue.
A subpart of (c):
In point (i)
The answer is 1 for the CES since only CES has salary and wage rates information.
In point (ii)
The answer is 2 for the CPS because only the CPS has job status information.
In point (iii)
The answer is 3 for the CPS as detailed in this issue, neither CES nor CPS explicitly states gender information. Even so, population studies generally include a 'gender' requirement.