True or false: the relationship between the number of workers and the number of bars produced is proportional.

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

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.