The perimeters of four triangles are as follows: 3, 9, 27, 81.
what would be the perimeter of a fifth triangle that follows the pattern?
a. 87
b. 100
c. 135
d. 243

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

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.

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?