Answer:
486,502
Step-by-step explanation:
z= 40
y=140
x= 115
look at the pics
median=mode
90
it is 90 because in the first slot there can be any 10 numbers and in the second slot the set can contain any of the remaining 9 numbers and then we can multiply these two numbers together to find the total amount of sets.
hope this helps :)
