radius = circumference /(2×pi) =26×pi / (2×pi) = 13
We cant answer these type of questions if theres no picture of the graph sorry
5. if x=3 then replace x with 3. 3^2 is 9, 1/3 of 9 is 3, 3+2 = 5
Answer: 
<u>Explanation:</u>
y varies directly with x means:
; where k is the rate