5 , 10 , 13 , 26 , 29 , 58 , 61 , ( . . . . )
"numbers are alternatively multiplied by 2 and increased by 3 5 ã — 2 = 10 10 + 3 = 13 13 ã — 2 = 26 26 + 3 = 29 29 ã — 2 = 58 58 + 3 = 61 61 ã — 2 = 122 answer c"
subtract(negate(26), multiply(subtract(10, 13), divide(subtract(10, 13), subtract(5, 10))))