Please double check me

Find the median of the following set of numbers
47,20,52,35,58,57
a. 49 1/2
b 47
c 48 1/2
d 52
Answer: a
Which of the following numbers are integers?
2/3, 35, 0.093,-650, 42.5
a 0.093 and 42.5
b 35 and -650
c 2/3
d -650
answer: c

put in order, half above median, half below

20 35 47 - 52 57 58
number is even so take average of two aove and below
(47 + 52)/2 = 49.5
yes, a

If there is a fraction in it, it is NOT an integer
35 and -650
I say b