Answer:
A. Twice the radius, d = 2r
Step-by-step explanation:
The diameter is a line that splits a circle in half, while the radius is only half of that.
This is what i got in the caculator 6400 if not im so so sory
Firstly, since these two fractions have the same denominator, add the numerators up: 
While it appears that the answer is -6/4, you can further simplify it by dividing the numerator and denominator by 2: 
<u>Your answer is
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Answer: did you ever get the answer ?
Step-by-step explanation: