Plzz it is urgent answer my question​

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

The variable in a relation who’s value depends on the value of the independent variable is called what?

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.