In a survey of 104 ​resorts, it was found that 29 had a spa.
64 had a fitness center.
44 had a​ children's club.
14 had a spa and a fitness center.
11 had a spa and​ children's club.
24 had a fitness center and​ children's club.
9 had all three features.

​a) How many of the resorts surveyed had only a​ spa?
nothing ​
​b) How many of the resorts surveyed had exactly one of these​ features?
nothing ​
​c) How many of the resorts surveyed had at least one of these​ features?
nothing
​d) How many of the resorts surveyed had exactly two of these​ features?
nothing
​e) How many of the resorts surveyed had none of these​ features?
nothing ​