The price of a item yesterday was $115 today the price fell to $46 find the percentage decrease

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

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.

I’m really confused and need to learn this