Ralph is planning to use the same indoor rock climbing facility that his friend Trina did. Trina can't remember how long she climbed, but she spent a total of \$21. on her session. She paid a $ entrance fee and $3.25 for every hour she climbed. If Ralph wants to spend the same amount of money, write an equation to help him figure out how long he should plan on climbing?

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.