2. A rental home on Airbnb rents for $100 a night for the first two nights, $90 a night for the next two nights, and $80 a night for each remaining night. The total cost T is a
function of the number of nights x that a guest stay.
a. Write the piecewise-defined function T.

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.