15/25 cuz 25 is the total and there's 15 milk. 2nd as dark chocolate would then be 10/24 cuz you've already taken one chocolate. Multiply by both would be 3/5 × 5/12 = 1/4. Percentage would then be 1/4 = 0.25 , and multiply that by 100% would then be 25%
The arc length is given by: C=θ/360πd where: d=diameter=2*7=14 ft θ=2/3*180=120 thus the arc length will be: 120/360*π*(2*7) =14.661 ft Answer: 14.661 ft