para reforzar un terreno con forma triangular se planta un árbol en un vértice después se plantan 3 árboles en línea luego una tercera línea de cinco árboles y así sucesivamente​

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Luke started a weight-loss program. the first week, he lost x pounds. the second week, he lost pounds less than times the pounds he lost the first week. the third week, he lost 1 pound more than of the pounds he lost the first week. liam started a weight-loss program when luke did. the first week, he lost 1 pound less than times the pounds luke lost the first week. the second week, he lost 4 pounds less than times the pounds luke lost the first week. the third week, he lost pound more than times the pounds luke lost the first week.

Solve 17= -13 - 8x and show your work.