Which symbol correctly compares these two fractions? (picture)

Josephine has a great garden with and area of 2x2 + x - 6 square feet

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.