Answer:
No 27/51 is greater than 18/34.
Step-by-step explanation:
If you simplify 27/51. It'll be 3/7 and if you simplify 18/34 it will be 9/17. Multiply the two fractions but not across. multiply the denominator with the numerator and the other numerator to the denominator to get 63 on 9/17 and 51 on 3/7. So 27/51 > 18/34.
I’ll answer once I get home
Answer:
The second one.
Step-by-step explanation:
I believe that the answer is 1/2 of a minute.
A and B must be disjoint. You have, by the inclusion/exclusion principle, that

where the last term is required to prevent double counting. When

and

are disjoint, you have

and

, leaving you with