Answer:
77
Step-by-step explanation:
mean = add up everything and divide by the number of numbers there are.
so there are 4 numbers
x/4=24
3 of the numbers are 22, 36 , and 9.
So, (22+36+9+x) / 4 = 24
Multiply 4 by both sides
22+36+9+x=144
x=77.
Hope this helps!
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