What is 38,496 rounded to the nearest thousand

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Find cot x if sin x cot x csc x = √2

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.