Answer:
i) 3x + 7
ii) x/3 = 9
iii) y = 2x +4
iv) y = 6x
3980 that is the answer
F
Step-by-step explanation:
Area of sector=pi*r^2*(theta/360) = pi*r^2*(45/360)
18*pi=pi*r^2*(1/8), r=12. Circumference is 24*pi
