What is the sector area of an 83° sector that is contained within a circle whose circumference is 24π mm? please help I neeed it dont have much time

Pls , the question is in the picture!

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

Which ratios are equivalent to 10: 16? check all that apply. 30 to 48 25: 35 8: 32 5 to 15