Answer:
5%
Step-by-step explanation:
Say x is the smaller of the two:
x/3=y/7
2x+3y=2700
solve and you get that
y=700, x=300
Answer:

Step-by-step explanation:
Given

Solving (a): Possible union elements
This is the represented by element with the largest number of the sets
i.e.

Solving (b): Possible intersection elements
This is the represented by element with the least number of the sets
i.e.


so the missing term in the denominator is 7^(-22)
ok done. Thank to me :>