Expand a polynomial!! Please show work

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

At the many chips cookie company they are serious about the number of chocolate chips in their cookies they claim that each cookie hasn't c chips. if their claim is true there will be 200 chips in 10 cookies

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.