Answer:
The standard form of a circle's equation is (x-h)² + (y-k)² = r² where (h,k) is the center and r is the radius.
Step-by-step explanation:
Plug in 2 for x. f(20=2-51 = -49
Answer:
54565656
Step-by-step explanation:
ggfght
I'm assuming you meant to write 8^(-2) or
where the -2 is the exponent over the 8.
If my assumption is correct, then we use the rule 
So,

<h3>Answer: Choice D. 1/64</h3>
68.48
100% divided by 6.25% is 16 columns
Second row is 4.28 each
4.28(16)=$68.48