On questions 5,6,8,14,20,21,22 and 29 and you

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

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.

The points (1, 7) and (0, 2) fall on a particular line. what is its equation in slope-intercept form?