Answer:
RANK.AVG
Explanation:
Required
Arrange data in descending order based on average
The feature to do this is to use the RANK.AVG() function.
By default, the function will return the ranks of the selected data in descending order (i.e. from highest to lowest); though, the sort order can be changed to ascending order.
The syntax is:
=RANK.AVG (number, ref, [order])
Where
number 
The number to use as rank
ref The cell range
order 0 represents descending order while 1 represents ascending order
Answer:
OC
Explanation:
I am not so sure about this though as I am not familiar with a webmail service. I hope this helped. Sorry, if it wasn't much of an help though
Answer:
Declare variable b in both lines
i.e. int b
Explanation:
In the given code, the parameters of both functions were not properly declared.
When listing the parameters, the data type must be clearly stated for all parameters (individually)
In the declaration of both functions, only variable a is declared as integer while b is undeclared.
So, the correction is to declare b as integer
