I would say your answer would be 1.125 because the radius is half of the diameter so 2.25 / 2 gives you 1.125.
They are the same. 8 times 8 is 64, and 16 times 4 is also 64.
18. Are congruent because of AA (Angle Angle)
This is simple, no worries!
See, what we do here is the percentage thing.
We know the total, and the number of people who prefer digital or hard copies.
Digital = 4
Hard = 21
Total = 25

× 100 = 84%

× 100 = 16%
Therefore, the most likely statement that is true is:
A. About 84% of the grandparents prefer the hard copy
I believe the answer is none of the above