Who can help me with these quick problems?

Find the missing dimension! need asap! tiny square is a =3025 in ²

Which graph has a rate of change of zero

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units