Given sequence 0,2,6,12,21,1,54,k, what is the value of k?

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15