A mobile virtual reality (VR) headset is being sold at a local department store for $33.75. This is the cost function associated with the headsets, where x represents the number of headsets manufactured and sold: C(x) = 28.15x + 355. How many VR headsets does the store need to sell to break even?

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.