Hey number 8. Be super careful, less than always look at that it should be 5n-3
Answer: a) 12
Step-by-step explanation: anything with parentheses means times (×)
Please ask the question in English, if you are not able to, I believe you are in the wrong language section and suggest you try something else before you get your question taken down.
B) the side opposite angle B is the longest
It would be: 5/6 / 30/60
We can re-write it as: 5/6 * 60/30
= 1/1 * 10/6
= 5/3
In short, Your Answer would be 5/3 or 1 2/3 or 1.67
Hope this helps!