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)

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !

Emmanuel added 888 links per minute to his chain mail. allesia started 202020 minutes after emmanuel and added 131313 links per minute to her chain mail. how long had emmanuel worked when allesia caught up to him, and how many links had he added?

What ratio is proportional to 18/21