Mathematics mathematics .

Need this asap if anyone can i would be very grateful. if you could show workings that would really

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.