What is the best estimate 5.78 ÷ 12.31

Can someone me with these two circle theorem questions asap?

What 8/12+8/11 in another way than and improper fraction

12 3 4 5 6 7 8 9 10 time remaining 42: 01 ryan gathered data about the age of the different dogs in his neighborhood and the length of their tails. which best describes the strength of the correlation, and what is true about the causation between the variables?