Charlie determined that the distance from her grandmother's house to her house is more than 20,000 feet but less than 26,000 feet. which of the following could be a reasonable estimate for the distance between the houses? a. 2.1 x 10^4 ft b. 2.1 x 10^3 ft c. 2.5 x 10^-4 ft d. 2.1 x 10^-4 ft e. 2.1 x 10^3 ft f. 2.5 x 10^4 ft (chose all that apply)