Answer: There are 249 times Jamie takes a counter from the bag.
Explanation:
Since we have given that
Ratio of colour of red to blue to green is 1:3:7.
Number of blue counters = 68
Let the total number of times Jamie does from the bag be x.
So, According to question,

Hence, there are 249 times Jamie takes a counter from the bag.
Answer:
D(9, 1)
Step-by-step explanation:
A being the midpoint means its coordinates satisfy ...
A = (E + D)/2
Solving for D, we find ...
D = 2A -E
= 2(4, 5) -(-1, 9) = (2·4 +1, 2·5 -9)
D = (9, 1)
4/15 because it can't be reduced any more. I hope this helps you out! :D
I am not sure but I would say either step 2 or 4 but I am not 100% sure I hope you do well. Good Luck:)