An office needs 300 envelopes. If there are 30 envelopes in each box, how many boxes should the office buy?

7x+8y=-18, 4x-9y=-3 solve the system of equations

Answer this question! 30 points and brainliest!

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