Hello! I got these questions wrong, do you think you could give me the right answers with an explanation please

16 0 / 4.5 points Find a50 given the sequence 26, -20, -66, ... O -2228 2326 X O -2274 2280 10 / 4.5 points Write a recursive formula to represent the sequence: 3, 1, 5, -3,... X an = an-1 - 4; an = 3 an = an-1 - 2; a1 = 3 O an = -2an-1 +7; a1 = 3 O an = 2an-1 - 7; a1 = 3 11 0 / 4.5 points Which recursive formula is represented by the data in the table? n an 3 -2 4 -11 5 38 6 -119 an = 6an-1 -1; a1 = -2 an = 6an-1 - 1; a1 = 2 X O an = 3an-1 - 5; a1 = -2 O an = 3an-1 - 5; a1 = 2 12 0 / 4.5 points A patient took 200 milligrams of a medicine necessary to fighting an infection. Each hour, 40% of the medicine dissolves in the body. Write a recursive formula that represents how much medicine is in the body after each hour. X O an = 0.4an-1; do = 200 an = an-1 - 0.4an-1; a1 = 200 an = an-1 - 0.4an-1; do = 200 an = 0.4an-1; a1 = 200