Write a recursive formula for the arithmetic sequence.
3,9,15,21,...

A. A(n) = A(n - 1) + 4; A(1) = 3

B. A(n) = A(n - 1) + 3; A(1) = 3

C. A(n) = A(n - 1) + 5; A(1) = 3

D. A(n) = A(n - 1) + 6; A(1) = 3

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3