Answer:
(6,1)
Step-by-step explanation:
You know that to move up or down means to change the y- coordinate. So for this on you do 10-9. This is 1. So the new y- coordinate is 1.
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❖ 20% as as a fraction in lowest terms is 
Percents are out of 100% so write 20% out of 100% as a fraction:

Both the numerator and denominator can be divided by 20 so once divided, you get 
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if the diameter of it is 12, its radius is half that or 6.

If you mean the sum of the two square roots, it would be 11. The square root of 25 = 5 and the square root of 36 = 6.. and 5 + 6 = 11